LSAT Practice Test

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What logical inference can be made from "Sara cannot be second unless Trang is first"?

Sara is always second
Sara is never second
Trang and Sara swap positions
Sara being second depends on Trang being first

The correct answer is: Sara being second depends on Trang being first

The correct answer is D because the statement "Sara cannot be second unless Trang is first" implies a conditional relationship between Sara and Trang's positions. It means that for Sara to be in the second position, Trang must be in the first position. Therefore, Sara being second is dependent on Trang being first. This logical inference is captured in answer choice D. Regarding the other answer choices: A. This option does not consider the conditional relationship between Sara and Trang's positions. B. This option is too absolute and does not consider the possibility of Sara being second under certain conditions. C. This option suggests a direct swap between Trang and Sara without considering the specific condition mentioned in the statement.