Choose the standard mandative subjunctive: “The committee recommended that the report ___ revised.”

A little clarity goes a long way.

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  A (is):

  “Is” is an indicative form, not the mandative subjunctive explicitly requested.
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  B (was):

  “Was” describes a past state; it is not the requested mandative subjunctive after “recommended that”.
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  C (has):

  “Has revised” would be active and would lack an object here; the report needs to receive the revision.
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  D (be):

  The mandative subjunctive uses the base form “be”, regardless of the subject: “that the report be revised”.