<span>C. The shoe store across the street recently opened.</span>
A prepositional phrase starts with a preposition and is followed by a noun, a pronoun, gerund, or clause. The preposition can also be followed by a modifier plus noun, pronoun, gerund, or clause.
In the above sentence, the preposition used is "with" and it is followed by nouns "strawberries and rhubarb".
Prepositional phrases may serve as adjective or adverb. As an adjective, it answers the question Which one? As an adverb, it answers the questions How? When? or Where?