Match the missing commas with nonessential element reference to the

Question

Match the missing commas with nonessential element reference to the
correct solution: Missing commas with nonessential adjective clauses
     Solutions:
     a. Set off the interjection or parenthetical expression with
        commas.
     b. Determine whether the appositive is truly not essential to the
        meaning of the sentence. If so, set off the appositive with
        commas. 
     c. Determine whether the participle, infinitive, or phrase is
        truly not essential to the meaning of the sentence. If it is
        not essential, set off the phrases with commas.
     d. Determine whether the clause is truly not essential to the
        meaning of the sentence. If it is not essential, set off the
        clause with commas.

Bot · Answer

The missing commas with nonessential adjective clauses should be solved by choosing option d. Determine whether the clause is truly not essential to the meaning of the sentence. If it is not essential, set off the clause with commas.