Which group of words from this sentence is a prepositional phrase?

Fans threw hundreds of hats onto the ice when the player scored again.

A. scored again

B. when the player

C. of hats

D Fans threw

Answer: It is C. of hats

The group of words that form a prepositional phrase is C) of hats.

A prepositional phrase is a group of words that consist of a preposition and it is followed by an object. The object is generally a noun, but it can also be a gerund (a verb form ending in - ing that functions as a noun), or even a clause. In this sentence, "of" is the preposition and "hats" is a noun functioning as a direct object.