Answer:
A is the answer because it seems more polite and respectful
Explanation:
Hi student if you are satisfied with my answer, don't forget to give brain list.
1) B. Sentinel is a soldier or guard whose job is to stand and keep watch
2)C I think
1) think something without knowing the actual answer
2) running alongside or next to something else
3) to messily and hastily scatter something
4) sticking out
5) strange and unfamiliar
6) as a noun: a large densely packed crowd
As a verb: of a crowd to pack themselves into place
7) to express disapproval of something or someone and criticise it
8) full of yearning or sad desire
9) having a calm, serious and proper manner that is worthy of respect
10) completely fascinated and fully absorbed in something one is seeing or hearing