A question and two statements are given below. Select the statement which is necessary/sufficient to answer the question.
Question:
X is taller than Y and Z is shorter than W, who is the shortest?
Statements:
1. Z is shorter than X.
2. W is shorter than Y.
1
Only 2 is sufficient while only 1 is not sufficient.
2
Only 1 is sufficient, while only 2 is not sufficient.
3
Either 1 or only 2 is sufficient.
4
1 and 2 together are sufficient.