If x and y are positive integers and 25x=10y what is the least possible value of xy?  Choose the correct choice from the following answers.
A) 14 B) 25 C) 63 D) 84 E) 252
25x=10y   =&gt; x/y = 2/5   =&gt; 5x=2y   5(3)=2(3) =&gt; x*y=9 25ut it is not given   5(5)=2(5) =&gt; x*y=25   25
<result>B</result>
If x and y are positive integers and 25x=10y what is the least possible value of xy?