hello, this was a multiple choice question.

The letters P, Q ,R,S,T and U are arranged randomly in a line. what is the probability that P and Q are next to each other.

A) $\displaystyle \frac{2X5!}{6!}$

B) $\displaystyle \frac{2X6!}{5!}$

C) $\displaystyle \frac{5X2!}{6!}$

D) $\displaystyle \frac{5X6!}{2!}$

i think i can eliminate B and D because i would not get a decimal for my answer but am not too sure anyway.

can someone please show me how this question is solved..