The sentence below has four parts (A, B, C, and D). One part has a grammatical error. Identify the part.
The same set of the facts (A)/ can be tailored (B)/ to fit any (C)/ preconceived belief. (D)

Correct option is C

Option (c) contains an error.
The phrase "the same set of the facts" is incorrect because "set of" already implies a group. The article “the” before “facts” is unnecessary. The correct phrase is: "the same set of facts".
Grammatical rule used:
When using the construction "a set of + plural noun", no article is needed before the plural noun.
Correct sentence:
The same set of facts can be tailored to fit any preconceived belief.
Example:
Incorrect: A bunch of the keys
Correct: A bunch of keys