Task instructions
Choose the best answer. For sentence equivalence in full practice, select two choices only when instructed.
Why might an author present two competing models?
A. To compare explanatory strengths and limitations
B. To prove both are identical
C. To avoid making any argument
D. To replace evidence with opinion
Practice workspace
Write notes or your response
02:00
Reveal answer key / expected response
A — To compare explanatory strengths and limitations
Suggested approach
Identify the tested relationship; eliminate choices that are grammatically or logically incompatible; verify the sentence or passage as a whole.
Official-style scoring criteria
Correct interpretation, vocabulary, and reasoning.