Ordering of Sentences - Verbal and Reasoning

Directions to SolveIn questions below, each passage consist of six sentences. The first and sixth sentence are given in the begining. The middle four sentences in each have been removed and jumbled up. These are labelled as P, Q, R and S. Find out the proper order for the four sentences.
Q1:

S1: The Hound of Baskervilles was feared by the people of the area.
P : Some people spoke of seeing a huge, shadowy form a Hound at midnight on the moor.
Q : But they spoke of it in tones of horror.
R : Nobody had actually seen the hound.
S : This shadowy form did not reveal any details about the animal.
S6: The Hound of Baskervilles remains an unsolved mystery.
The Proper sequence should be:

A SPQR

B SPRQ

C PSRQ

D PQRS

ANS:C - PSRQ

No answer description is available.