To listen to his music is sheer delight. What type of phrase is "To listen to his music?"

A. Prepositional phrase

B. Verbal phrase

C. Appositive phrase

D. Absolute phrase

The correct answer is B. verbal phrase.

Explanation:

A verbal phrase has to contain some kind of a verbal - be it a participle, a gerund, or in this case, an infinitive. The phrase contains an infinitive to listen, and given that infinitives are verbals, the entire phrase is a verbal phrase.

Prepositional phrases start with a preposition.

Appositive phrases are separated by commas.

Absolute phrases can be deleted from the sentence without changing its meaning.