A condition X is not a sufficient condition for Y if:
A) X and Y are present together.
B) X is present when Y is absent.
C) X is absent when Y is present.
D) X is relative but Y is absolute.
E) X and Y are absent together.

Question

Quizplus · Accepted Answer

CFor a condition X to be sufficient for Y, whenever X occurs, Y must also occur. If X is present when Y is absent (B), it shows that X alone cannot guarantee the occurrence of Y, thus it is not sufficient. Similarly, if X is absent when Y is present (C), it indicates that Y can occur without X, further showing that X is not a sufficient condition for Y.

A Condition X Is Not a Sufficient Condition for Y