Five persons, P, Q, R, S and T travelled in different months of the same year viz. January, February, March, April and May. Q travelled in February. Only one person travelled between Q and P. Only three people travelled between T and R. R travelled in a month after P. who among them travelled in May?

Q travelled in February.

Only one person travelled between Q and P.

Only three people travelled between T and R.

R travelled in a month after P. 

So, R among them travelled in May.

Thus, Option D is the correct answer.