The leader of the opposition,
P : in the manner he had planned to convince them
Q : on realising that he had failed to convince the assembly
R : who had a reputation for speech making,
S : was very much disappointed

The Proper sequence should be:

A. PSRQ

B. QSRP

C. RSQP

D. SPRQ

Answer: Option C

Solution(By Examveda Team)

The leader of the opposition, who had a reputation for speech making, was very much disappointed on realising that he had failed to convince the assembly in the manner he had planned to convince them.