If x is a number whose simplest form is ( frac {p}{q} ), where p and q are integers and q 0, then x is a terminating decimal only when q is of the form _________

If x is a number whose simplest form is ( frac {p}{q} ), where p and

1.	If x is a number whose simplest form is ( frac {p}{q} ), where p and q are integers and q 0, then x is a terminating decimal only when q is of the form _________
A.	3<sup>m</sup> 5<sup>n</sup>
B.	2<sup>m</sup> 6<sup>n</sup>
C.	2<sup>m</sup> 5<sup>n</sup>
D.	7<sup>m</sup> 5<sup>n</sup>
Answer» C. 2<sup>m</sup> 5<sup>n</sup>