We can think of
P : often confused in the public mind
Q : which suggest the need for
R : two factors
S : an international language

The proper sequence should be:

A. PRQS

B. RPQS

C. RQSP

D. SQRP

Answer: Option B

Solution(By Examveda Team)

We can think of two factors often confused in the public mind which suggest the need for an international language.