A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system to allow them to move comfortably through different climatic regions.
A)to allow them to move comfortably
B)to allow it a comfortable movement
C)that allowed it to move comfortably
D)that allowed their comfortable movement
E)Allowing them to move comfortably
Source: Gmat Question Pack
A row of upright fan-shaped plates running down the spine pr
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C is my answerbonbossamazing wrote:A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system to allow them to move comfortably through different climatic regions.
A)to allow them to move comfortably
B)to allow it a comfortable movement
C)that allowed it to move comfortably
D)that allowed their comfortable movement
E)Allowing them to move comfortably
Source: Gmat Question Pack
Firstly, the subject here is the dinosaur so 'it' should be used for addressing...
Eliminating A,D,E
Now to maintain parallelism among two clauses verb allow must have same tense as provide (allowed)
Hence, C
also that should be used here.....
what is the OA for this question