In the question below, there is a sentence of which some parts have been jumbled up. Rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence.

The national unity of a free people

P : to make it impracticable

Q : for there to be an arbitrary administration

R : depends upon a sufficiently even balance of political power

S : against a revolutionary opposition that is irreconcilably opposed to it

The Proper sequence should be:

A.

QRPS

B.

QRSP

C.

RPQS

D.

RSPQ

Correct answer is D

No explanation has been provided for this answer.