Sentence Correction (SC) | In California, a lack of genetic variation in the Argentine

But for whatever it's worth, there are plenty of other problems with (B), if that was the answer choice that tempted you. "Due to" can only modify a noun, not a verb -- and in (B), it looks like "due to its being so genetically similar" is trying to modify the verb phrase "the ant considers". And that doesn't work.

Also, it's awfully awkward to say "its being." "Being" is apparently a gerund here, and it is preceded by the possessive pronoun