Question

In which sentence is the underlined prepositional phrase an adjective phrase?

In college football, a tied game ends with no overtime.


A football game has four quarters of 15 minutes.


Football games are supervised by neutral referees.


The players run onto the field to start the game.

Answer 1

Answer:B. A football game has four quarters of 15 minutes.

Step-by-step explanation:

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Answer 2

Adjectival phrases modify nouns, which means that they usually stand next to a noun which they are describing. Having this in mind, the correct answer is B. A football game has four quarters of 15 minutes.
The prepositional phrase here is of 15 minutes, but it functions as an adjective phrase describing the noun quarters.
A is incorrect because the prepositional phrase acts as an adverbial phrase modifying the verb ends; C is incorrect because the prepositional phrase functions as an adverbial phrase modifying the verb supervised; D is incorrect because of the same reason - the phrase modifies the verb run.