Ease Into Prep with an OAT^® Question of the Day

The correct answer is D.

This question is testing our understanding of factorials. We know that:

Now we just have to locate an equivalent expression in the answer choices. Rather than just trying them all out, you may notice that the correct answer is a multiple of 5, so there's no point in even trying out choices A, B, or C.

Let's try choice (D):

So choice (D) is the answer.