In the question below, the passage consists of six sentences. The first and sixth sentences labelled S1 and S6 respectively, have been ordered correctly. The middle four sentences have been jumbled up. These are labelled as P, Q, R and S. Find out the proper order for the four sentences.

S1: Calcutta unlike other cities kept its trams.

P : As a result, there is horrendous congestion.

Q : It was going to be the first in South Asia.

R : They run down the centre of the road

S : To ease it, the city decided to build an underground railway line.

S6: The foundation stone was laid in 1972.

The Proper sequence should be:

A.

PRSQ

B.

PSQR

C.

SQRP

D.

RPSQ

Correct answer is D

No explanation has been provided for this answer.