Consider three real numbers, X, Y, and Z. Is Z the smallest of these numbers?

A. X is greater than at least one of Y and Z.
B. Y is greater than at least one of X and Z.

A

if the question can be answered by one of the statements alone, but cannot be answered by using the other statement alone.

B

if the question can be answered by using either statement alone.

C

if the question can be answered by using both the statements together, but cannot be answered by using either statement alone.

D

if the question cannot be answered even by using both statements together.