1 : According to reports
P : were still trapped inside
Q : bogies
R : the wrecked
S : some of the passengers
6 : of the express.

The Proper sequence should be:

A. PRQS

B. PSQR

C. RSQP

D. SPRQ

Answer: Option D

Solution(By Examveda Team)

According to reports some of the passengers were still trapped inside the wrecked bogies of the express.