Answer:
the first answer choice
Explanation:
the rest of them don't seem to have much to do with the question. if he's always smiling and glancing around for fear of people watching and judging him, then he definitely cares too much about wjat others think
A best supports the argument because it is the only answer that describes the pros of having mice as pets, while the others provide tips and facts upon adopting them.
The infinitive phrase in this sentence is to speak clearly, and it is used as a subject of the sentence. What/who is essential to being understood? To speak clearly.
