Answer:
yes , because he believes in serving the greater good
Explanation:
Exclamation point because it's not formal or professional
Diction is the author's word choice.
So A, otherwise known as the first choice in your list.
Hope this helps!
The correct answer to the question above is a public opinion poll. The senator decided to check the results of a public opinion poll to obtain a sound indicator of how his or her constituency felt about the issue.