Why not E ? 0.2 value also one decimal

I think answer should be D & E

Carcass is the explanation by sandy correct that answer is e x=5

Thus, x must be at least 5. Note that the question asks what must be true. Choice (D) must be true.

Choice (E), x = 5, represents one value that would work, but this choice does not have to be true.

Sandy did not say that E is correct.

$\frac{3^x(5^2)}{3^5(5^3)}$, this quotient terminates , implies that x is an integer.
You know 2 or 5 or both 2 and 5, in the denominator always terminates. When a multiple of 3 is divided by 3, then the quotient is never terminated.
So, as long as $3^5$ is active in the denominator, the quotient won't terminate. We need to cancel out $3^5$ in the denominator in order to get a terminating decimal of the quotient.
So, x=5 satisfies the condition. however, we need to find out the MUST BE TRUE condition, which is true at all points of the condition rather than at a single point.
So, $x\geq5$
Ans. (D)