Bunuel
Entomologists have recently discovered what appears to be a global mega-colony of ants, a massive complex that consists of over 22 million interconnected anthill networks constructed by over 200 billion Argentinean ants some 100 years ago and
sprawling across the Americas, Europe, Australia, and Asia.
(A) sprawling
(B) sprawls
(C) sprawled
(D) it sprawled
(E) is sprawling
The text highlights the issue of tense. While the complex was constructed (simple past) by ants a century ago, it still stands to this day and thus the correct verb is "sprawling" (Present Continuous).
(A) sprawlingCORRECT.
(B) sprawls
Simple present. Moreover, this answer choice incorrectly modifies the noun “anthill networks” with “sprawls across the Americas, Europe, Australia, and Asia”; the use of the active verb “sprawls” forms a dependent clause. INCORRECT
(C) sprawled
As discussed above, the complex still exists. INCORRECT.
(D) it sprawled
The use of "it" is incorrect and makes the sentence unconcise. Further, the word "sprawled" implies past tense. INCORRECT.
(E) is sprawling
The use of "is" is incorrect and makes the sentence unconcise.