The prepositional phrase in the sentence "the family drove to the store" is "to the store." To identify a prepositional phrase, you need to find a word called a preposition, which is a word that shows the relationship between other words in a sentence. In this case, the preposition is "to." The prepositional phrase begins with the preposition "to" and includes the object of the preposition, which is "the store." So, the correct answer is (d) "to the store."
