In the early 1800s, seven planets were known, but perturbati

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In the early 1800s, seven planets were known, but perturbations in the orbit of Uranus, the seventh planet, suggesting the existence of a hypothetically eighth planet.

(A) suggesting the existence of a hypothetically

(B) suggesting the existence of a hypothetical

(C) to suggest the existence of a hypothetical

(D) suggested the existence of a hypothetical

(E) suggested the existence of a hypothetically



A sentence can be 100% grammatically correct but still be illogical: such answer choices on the GMAT SC are incorrect, but they snag the folks looking only at grammar. For a discussion of these issues, with 7 other practice questions and the OA & OE for this question, see:
https://magoosh.com/gmat/2016/logical-s ... orrection/

Mike :-)
Magoosh GMAT Instructor
https://gmat.magoosh.com/