If b is an integer is b an even number?
I. 3b is an even number
II. b + 2 is an even number.

Options

A. If statement (I) alone is sufficient to answer the question.
B. If statement (II) alone is sufficient to answer the question.
C. If either (I) or (II) alone is sufficient to answer the question.
D. If both statements (I) and (II) taken together are sufficient to answer the question.

Answer

C

Explanation

In this question, statement I alone is sufficient to answer the question. Since 3 is an odd number if 3b is even, then b must be an even number. Statement II is also sufficient. If b + 2 is an even number, then b must be an even number. Therefore the correct answer is choice (c).