Verb refers to the action words such as to sing, to dance, to eat and so on. The verbs act as a link between the subject and the information provided about the subject. Whereas, the verb phrase that contains either an indirect and direct object or both the verb. The verb phrase can also act as an adjective or adverb and contain a verb. A phrase can act as a predicate of a sentence or clause.
In the sentence, "Would you meet me for a debate on the new law?" The sentence contains the main verb "meet" and the auxiliary or helping verb "would", hence it is a verb phrase.
Therefore, the verb phrase in the above question is C. Would meet