Sentence Correction (SC) | Although, according to several studies, the costs of treating acute ot

Although, according to several studies, the costs of treating acute otitis media(AOM) episodes amounts to a sum higher than 2 percent of the estimated $3 billion the nation spent on illness last year, doctors say that these costs can be mitigated if parents take preventative measures for their children.

(A) amounts to a sum higher
(B) amounts to greater
(C) amounted to greater
(D) amounted to higher
(E) amounted to a higher sum

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