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This question tests Reading Comprehension skills on identifying the main idea. The CBEST Reading section emphasizes evaluating central themes, distinguishing between fact and opinion, and extracting key information. The sentence highlights the growing role of renewable energy in reducing emissions. Option B directly captures both aspects: the increase in renewable energy use and its impact on lowering carbon emissions. Options A and C are extreme distortions not supported by the text, while option D contradicts the claim. Correctly identifying the main idea requires focusing on the overall statement, not minor details. In CBEST Reading, these types of questions ensure test takers can comprehend informational text in contexts such as science, history, and social studies. Strong comprehension enables teachers to analyze materials effectively, interpret student data, and engage critically with educational content.

The phrase “improved test scores significantly” shows success despite doubt. Option B captures this contrast. Options A, C, and D contradict the passage. CBEST Reading often tests comprehension of contrasting viewpoints, preparing educators to analyze policies and student performance reports.

The text shows both praise and criticism, indicating division. Option B is correct. Options A, C, and D contradict the statement. CBEST Reading emphasizes recognizing multiple perspectives, preparing educators to analyze complex texts and policy debates with nuance.

25% = 1/4. So, if ¼ of a number is 60, the full number is 60 × 4 = 240. Wait—recheck: 60 ÷ 0.25 = 240. Correct answer is D (240). Options A, B, and C reflect common errors. CBEST Math often tests percentage applications to real-world numbers.

Option C is correct: “teachers” (plural subject) matches “are.” Option A misuses the apostrophe, option B mismatches subject-verb, and option D lacks a verb. CBEST Writing evaluates grammar accuracy, ensuring professional communication. Teachers must model this consistently.