Correct answer: B

Main reasoning: The entire passage revolves around public actions and demonstrations demanding the endorsement of the national education bill. While supporters and demands are mentioned, they all point to one central issue: the education bill itself.

Option analysis:

A. Too broad; the text is not about education in general.

B. Correct: the bill is the core topic discussed.

C. Supporters are mentioned, but only as part of the issue.

D. The passage is not about one person’s idea.

E. Public demand is present, but it serves the main topic, which is the bill.

Logic note: The main topic must cover all details; “education bill” is \( \gt \) “supporters” in scope.

Correct answer: C

Main reasoning: In the context of a bill, “endorsed” means officially supported or accepted. The closest meaning among the options is “approved.”

Option analysis:

A. “Talked” does not imply official acceptance.

B. “Discussed” means talked about, not accepted.

C. Correct: “approved” matches the formal meaning of “endorsed.”

D. “Decided” is related but less precise than “approved.”

E. “Resumed” means continued again, unrelated here.

Logic note: Endorsement implies acceptance; acceptance is \( \gt \) mere discussion.

Correct answer: B

Main reasoning: The passage explains how Satellite Space-eye is used by farmers to monitor fields, analyze problems, and predict harvest results. Constanza is only an example to show this use.

Option analysis:

A. Too narrow; Constanza is an example, not the main topic.

B. Correct: the main focus is the application of satellite technology in farming.

C. Colours are discussed, but only as part of the system.

D. Meaning of colours is a detail, not the main idea.

E. Prediction is one function, but not the whole topic.

Logic note: A general technological use is \( \gt \) a single example or detail.

Correct answer: B

Main reasoning: Paragraph \( 2 \) explains how Constanza’s home computer connects to Satellite Space-eye and displays images of his field. This connection is the core idea that allows all other actions.

Option analysis:

A. True but too general; the paragraph focuses on the connection process.

B. Correct: the connection enables viewing and analysis.

C. Only one detail within the paragraph.

D. Too broad; detailed later in other paragraphs.

E. Implies active sending, which is not emphasized here.

Logic note: Without connection, information access is \( \lt \) complete system use.

Correct answer: B

Main reasoning: The text states that a red colour indicates a warmer spot, which may be due to lack of moisture or not enough nutrients in the soil. Therefore, insufficient nutrients best match the meaning.

Option analysis:

A. Incorrect; red indicates a problem, not healthy plants.

B. Correct: lack of nutrients is explicitly mentioned.

C. Incorrect; red shows warmer temperature, not low.

D. Incorrect; insects may also cause red spots.

E. Incorrect; red signals something wrong.

Logic note: Problem indication is \( \gt \) healthy condition when interpreting warning colours.

Correct answer: D

Main reasoning: The phrase “due to” means “because of.” “Owing to” is the closest synonym that keeps the same causal meaning in the sentence.

Option analysis:

A. “Make” does not express cause.

B. “Have” does not show reason.

C. “Get” is unrelated to causation.

D. Correct: “owing to” has the same meaning as “due to.”

E. “Let” does not fit the context.

Logic note: Cause–effect connectors are equivalent; “owing to” is \( = \) “due to” in meaning.