GMAT Problem Solving (PS) | Re: How many different four-letter words can be formed (the words need not

How many different four-letter words can be formed (the words need not be meaningful) using the letters of the word GREGARIOUS ?

A)\(_8P_2\)

B)\(\frac{_8P_2}{2!2!}\)

C)\(_8P_4\)

D)\(\frac{_8P_4}{2!2!}\)

E)\(\frac{_{10}P_2}{2!2!}\)


Could you confirm that my answer is indeed correct ? Many thx in advance.