GMAT Sentence Correction (SC) | Re: The ability of scientists to provide models of the

The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.

(A)The ability (singular subject) of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions,have (plural verb) become ever more accurate. -Eliminate
(B) The ability of scientists has become
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