We all made an effort "to work harder"
identify the phrase in quotations
a. prepositional phrase
b. verb phrase
c. infinitive phrase
d. gerund phrase

Prepositional phrases begin with a preposition (above, behind, below)

a verb phrase contains a verb and an object, but no subject

an infinitive phrase starts with "to" and has a verb

a gerund phrase contains a verb ending in "-ing"

with that information, only one answer fits "to work harder" and the answer is C!! it begins with "to" and contains a verb.

The answer is the answer is a!

This is what i found “an elliptical clause is a type of dependent, or subordinate, clause that is missing a word or words. often, the missing part is a verb or verb phrase. while elliptical clauses are acceptable to use, they can sometimes cause confusion for writers and readers, especially when the sentence ends with a pronoun.” i hope this you for what your looking for. can you plz mark me brainliest?