Though he dialled frequently
P : on telephone
Q : my brother could not contact me
R : and had left no information
S : as I had gone out of office

The Proper sequence should be:

A. QPRS

B. SQRP

C. QPSR

D. SPQR

Answer: Option C

Solution(By Examveda Team)

Though he dialed frequently my brother could not contact me on telephone as I had gone out of office and had left no information.