Sentence Correction (SC) | Re: Based on a recent study by the National Institute of Health, a

Based on a recent study by the National Institute of Health, a conclusion was reached about the need to mass immunize teen-aged boys and girls against HepatitisB.

(A) a conclusion was reached about the need to mass immunize teen-aged boys and girls against Hepatitis B.
(B) it was concluded that the need exists to mass immunize teen aged boys and girls against Hepatitis B.
(C) mass immunization of teen-aged boys and girls against Hepatitis B was concluded as needed.
(D) teen-aged
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