In each 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.

11.
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