Answer:
A and B
Step-by-step explanation:
A: a prepositional phrase is a group of words made up of a preposition (such as to, with, or across), its object (a noun or pronoun), and any of the object's modifiers (an article and/or an adjective).
B: A subordinate (adjective)clause is an adjective clause is a subordinate clause that modifies the noun in the main clause. It includes a subject and a verb, which is why, it is a clause and not a phrase. It usually appears after the noun. Thus, it acts like an adjective, giving more information about the function of the noun in the sentence.
C: An independent clause is a group of words made up of a subject and a predicate. Unlike a dependent clause, an independent clause is grammatically complete—that is, it can stand alone as a sentence. An independent clause is also known as a main clause or a superordinate clause.