From the set of items: X, Y, Z, A, and B, the following conditions are given: 1) X cannot be selected if Y is selected. 2) Z must be included if A is selected. 3) B can be included regardless of the others. Which selection is valid?
Answer: D. Y, A, B
'Y, A, B' is valid as it does not violate any conditions: X is not selected with Y, and Z's inclusion is not required.