A Food and Drug Administration rule implemented in December 2000 mandates that any new drug that they intend to be used both by adults and children must undergo pediatric study and that its manufactures list children’s doses on the label.
A. drug that they intend to be used both by adults and children must
B. drug whose intended use is for adults and children as well
C. drug intended for use by both adults and children
D. drug, if they intend that it be used by adults and also children, must
E. drug, if intended for use both by adults and children, must
Refering to query from
perseverance84 in another forum ...I will try and answer that
Clearly A B and D are ruled out for pronoun antecedent (A and D)....B needs a must
Use of mandate implies subjective verb usage which is always plural. The correct sentence needs to have a construction as followsTrigger word for Subjunctive verb usage(Demand/Dictate/Insist/Mandate/Propose/Recommend/Request/Stipulate/Suggest) + that+ subject +Subjunctive verb (plural) .
in the above ans choices only C fits the bill with construction. Note that" intended for use by both adults and children " is verb-ed modifier modifying
drug and undergo is the subjunctive verb (plural).
Hope it helps
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