Answer:
The three men agree to think further about the matter, and when Casca and Brutus have gone, Cassius in a brief soliloquy indicates his plans to secure Brutus firmly for the conspiracy that he is planning against Caesar. Unrest is possible in Rome because the new leader is weak.
to enrich
An infinitive is the basic form of the verb without a subject. When it is used in a sentence, it is preceded by "to". The correct answer is the one with a verb. To test it out just ask yourself if you can use it with the subject I after dropping "to". I enrich? Yes! Check, it's right. You can't say I the delight or I Tuesday mornings. The rest of the options are prepositional phrases because they start with the preposition to and end in a noun (person, place, thing, or idea).
Answer:
The infinite phrase is choice A: "to return the sweater".
Explanation:
An infinite phrase is described as a verb plus modifying words. "Return" is a verb, and "to" is a modifying word. "To return" is the infinite phrase.