Answer:
a. because when they go out to find them they need there certain smell
The teacher required the students to cite their sources for their research paper.
First, you need to know what a preposition is. A preposition is a word that links to a pronoun or noun. In the sentence, Lazy would be the adjective, Pig would be the noun, rolled is the verb, and slowly is the adverb. I would have to say around is the preposition.