If m and n are positive integers, and m=2n and k=5m, then -	Choices:	A) 3m is a factor of k/2.	B) 2m is a factor of k.	C) m/2 is a factor of k.	D) k is a factor of m.	E) k is a factor of m/2.
m=2n --&gt; m is even.   k=5m --&gt; m is factor of k, thus m/2 = integer must also be a factor of k.   Answer: m/2 is a factor of k..
<result>C</result>
If m and n are positive integers, and m=2n and k=5m, then -