How many prepositional phrases are in the following sentence? "robert, why on earth won't you get your clothes off the floor? ! " a. two: "why on" and "off the floor" c. two: "on earth" and "off the floor" b. three: "on earth," "you get," and "off the floor" d. one: "off the floor" answer is c

C. "on earth" and "off the floor".

Explanation:

A prepositional phrase begins with a preposition followed by its object(noun or pronoun) and any modifiers of the object. It is employed in a sentence to draw the relation between a noun or pronoun and other words in the sentence. These phrases act either as an adjective or as an adverb. Thus, in the given statement, the prepositional phrases are "on earth" and "off the floor" as they justify the above claim. They both begin with a preposition and followed by their objects and linking the subject with the object. a and b options suggest an inappropriate claim as they contain phrases not beginning with a preposition while the last one gives only one phrase. Thus, the c part is the answer.