Read the following information to answer the questions:
Five persons P, Q, R, S and T are sitting around a circular table. The group comprises a Professor, a Doctor and a Politician. The Politician is sitting between the Doctor and his wife, S. P, the Professor, is married to T, who is the sister of Q. The Doctor is seated on the right of R. Both the females are unemployed.
P is sitting on the right of which of the following?