Select the correct verb form for the mandative subjunctive:

The safety inspector recommended that the chemical refinery _____ its emergency containment protocols immediately.

Answer and explanation

Correct answer: D. update

  1. Step 1: Identify the governing verb of recommendation: 'recommended that' triggers the mandative subjunctive in formal written English.
  2. Step 2: Use the uninflected base form of the verb ('update') regardless of the singular subject ('chemical refinery').
Answer
update.
Why not the others: 'updates' uses the third-person singular indicative form which is non-standard in formal subjunctive clauses; 'updated' incorrectly uses past tense; 'will update' introduces an indicative modal future contrary to subjunctive grammar.

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