Sentence Correction (SC) | Epidemiologists no longer doubt that medicine's heroic effort to conqu

Epidemiologists no longer doubt that medicine's heroic effort to conquer malaria has been unsuccessful, that some of the best weapons against malaria are losing their effectiveness, and that in many parts of the world there are a definitely increasing number of malariacases .

(A) and that in many parts of the world there are a definitely increasing number of malaria cases
(B) and that in many parts of the world the number of malaria cases is definitely increasing
(B) and that in many parts of
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