Sentence Correction (SC) | Re: The new University of Michigan study recommends that the state adopt

Correct answer is A.
Here presence of ' Recommends that' indicate subjunctive mood i.e. one person wants the other person to do something.
It always follows the structure: Subject+Verb+That+Subject+verb in base form(plural).
Following the above structure 'Adopt' is the correct plural verb.

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