Scientists say that each of the photographs taken of the Ares Vallis plain by the Mars Pathfinder
indicate the overwhelming extent to flooding on the planet billions of years ago and the degree that rocks were scattered by its force.
(A) indicate the overwhelming extent to flooding on the planet billions of years ago and the degree that
(B) indicate that the extent of the floods on the planet billions of years ago was overwhelming and the degree to which
(C) indicate the overwhelming extent of the floods on the planet billions of years ago and the degree to which
(D) indicates the overwhelming extent of the flooding on the planet billions of years ago and the degree to which
(E) indicates the overwhelming extent to flooding on the planet billions of years ago and the degree that
The subject “each” takes the singular verb. Hence any option that uses the plural verb “indicate” gets eliminated-
Eliminate A, B, and C.
We can either say the overwhelming extent
to which something happened or the overwhelming
extent of something (noun). As we are talking about the flooding (gerund) on the earth. We have to use the construction - the extent of and not extent to.
As we are not modifying the degree, it is incorrect to use “that”-The degree that rocks were scattered.
Eliminate D.Scientists say that each of the photographs taken of the Ares Vallis plain by the Mars Pathfinder indicates
the overwhelming extent of the flooding on the planet billions of years ago and the degree to which rocks were scattered by its force.
Option D is correct. VP
GMAT SME