Which of the following people are acting in their role as delegates?
a senator voting on a bill
a police officer arresting a criminal
a president pardoning a criminal
an fbi agent enforcing the law

A senator voting on a bill.

Explanation:

A delegate is a person who has been elected by his/her peers to represent them, so a senator would be the right choice here.

The president has also been selected by his/her peers but the decision to pardon a criminal can be personal or political, and he/she may not be representing eveyone who voted for him/her with such decision.

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.  

by caca

explanation: