Can you spot the different #GMAT sentence correction errors...
In 1974 a large area of the surface of Mercury was photographed from varying distances, which revealed a degree of cratering similar to that of the Moon’s.
(A) which revealed a degree of cratering similar to that of the Moon’s
(B) to reveal a degree of cratering similar to the Moon
(C) revealing a degree of cratering similar to that of the Moon
(D) and revealed cratering similar in degree to the Moon
(E) that revealed cratering similar in degree to that of the Moon
The intended meaning of the sentence is as follows
a large area was photographed and analysed. From that analysis the degree of catering of mercury was compared to that of the moon.
Elements that can be identified
1. Usage of a pronoun which
2. comparison..- degree of catering of mercury vs degree of catering of moon.
3. 2 clauses - A comma after distances.
Option A
Which is a pronoun . Its antecedent is Distance. Did distance reveal anything.. No.. Option A is ruled out.
Option B
Degree of catering of mercury is compared to moon.. That comparison is absurd. The correct comparison is Degree of catering of mercury and degree of catering of moon. Option B has an error
Option C
Revealing is a participle. The participle phrase - Revealing.... is predicated of the main subject - large area of surface. The large area was revealing information via a photograph. The sentence structure is precise and unambiguous. The comparison is appropriate. "That of" indicates a feature of moo. The comparison here is between feature of mercury(Degree of cratering) and feature of moon.
Option C is correct.
Option D
And indicates. that large area revealed two features. From the intended meaning, only one feature, degree of cratering, is mentioned. Also a comparison error. ( same as option B) Hence Option D has a multiple errors.
Option E
Which noun does "that" refers to? Large area or photograph ?? It is not clear. Option E is elliminated
Hence option C is the correct answer.
Hope you noticed all the errors.
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