Select the letter of the term that identifies the phrase in parentheses in the following sentence: Artificial blood serum may soon be made (with potato protein).

Aprepositional phrase
Bappositive phrase
Cparticipial phrase
Dgerund phrase
Einfinitive phrase

Verified Answer :

The phrase with potato protein is a A. prepositional phrase, since it begins with the word with, which is a preposition. 
An appositive phrase would be separated with commas, a participial and gerund phrase would have the form verb + ing (making...), and infinitive phrase would have an infinitive (to make).