Which of the following can function as adjectives?
a infinitive phrase
b gerund phrase
c participial phrase

Participial phrase can function as adjectives by changing nouns and pronouns. A participle can be a present participle or a past participle. A participial phrase involves the participle and also any transformers and correlatives.

A participle ends in forms like ing, ed, and many more similar to these. Usually adjectives are taught to growing generation for the purpose of correct use of language and communication. It provides a great help in understanding and writing which could also be explained to another individual.

momentum, decrease, increase

Explanation:

just did it on edg.