LSAT Practice Test

In this context, the word "unless" typically functions to reverse the meaning of the following statement. When "unless" is used, it introduces a condition that, if not met, will result in the opposite outcome or conclusion. This reversal is a common way to understand the use of "unless" in logic and language, making choice B the correct answer.

Regarding the other options:

A. While "unless" does introduce a condition, it doesn't necessarily have to be met. Instead, it states what will happen if the condition is not met.

C. "Unless" does not specifically emphasize the preceding statement; its primary function is to set a condition for the following statement.

D. The word "unless" does impact the meaning by introducing a condition that affects the outcome or conclusion.