### Question #171

If $x$ and $y$ are positive integers, is $x/y$ an even integer?

* **Option A:** [1] $x$ is a multiple of 4.
* **Option B:** [2] $y$ is an even integer.

### Dynamic Answer Explanation

If statement 1 is true, $x$ could be 4, but if $y=4$, $x/y=1$ (Odd). If $y=2$, $x/y=2$ (Even). Insufficient. If statement 2 is true, $y$ is even, but without knowing $x$, we cannot determine sufficiency. Combining both, if $x=4$ and $y=2$, $x/y=2$ (Even). If $x=4$ and $y=4$, $x/y=1$ (Odd). Still insufficient! Therefore, Option E is correct.