Since the beginning of history
P : have managed to catch
Q : the Eskimos and Red Indians
R : by a very difficult method
S : a few specimens of this aquatic animal

The Proper sequence should be:

A. QRPS

B. SQPR

C. SQRP

D. QPSR

Answer: Option D

Solution(By Examveda Team)

Since the beginning of history the Eskimos and Red Indians have managed to catch a few specimens of this aquatic animal by a very difficult method.