Question

A prepositional phrase: _____. contains a preposition contains no modifiers contains a subject and a verb contains an object and any modifiers of the object

Answer 1

A prepositional phrase contains a preposition and usually a noun. Your answer would be the first choice.
example:
I went over the hill. "Over the hill" is a prepositional phrase. 

Answer 2

Answer:

A prepositional phrase: contains a preposition

Explanation:

A prepositional phrase is a group of words that function as a single unit and that consists of a preposition and the object of the preposition (like a noun or a pronoun), and that may also contain (not always) modifiers of the object. There are two types: adjective phrases (when they modify a noun) and adverb phrases (when they modify a verb, an adjective, or another adverb).

Look at the following examples of sentences with prepositional phrases (underlined):

The classes were all held in the morning.

In: preposition; the: modifier of the object; morning: object.

Type of phrase: adverbial because it modifies the verb "held."

Classes like these keep the students busy.

Like: Preposition; these: object.

Type of phrase: adjectival as it modifies the noun "Classes."