Correct option is D
Given:
R won in January.
Exactly two teams won the tournaments between the months of R and S.
Q won in the month immediately before U.
P won the tournament in the month immediately before S.
From the Given information arrangement will be:

We know January: R
To satisfy Q winning immediately before U:
Q could win in May and U in June; or
Q could win in February and U in March.
But P won in March, so Q and U cannot win in March and April.
So, Q must win in May and U in June:
February must be the month for T since Q is already winning in May and U in June.
Therefore, team T won the tournament in February.
Thus, correct option is (d)