Task: Question Answering
Input (English): Question: If m and n are positive integers, and m=2n and k=m, then -

 Option A: m/2 is a factor of k.

 Option B: 2m is a factor of k.

 Option C: 3m is a factor of k/2.

 Option D: k is a factor of m.

 Option E: k is a factor of m/2.
Output (English): Option A