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
Aprepositional phrase
Bappositive phrase
Cparticipial phrase
Dgerund phrase
Einfinitive phrase