Jerry was terribly keyed up. in the past he had lectured nancy on the dangers of working with ebola in a space suit, and now he was leading a team into an ebola hell. at the moment, he didn't care what happened to himself, personally. he was expendable, and he knew it. based on context clues, what is the best definition of the word "expendable”? necessary to an operation knowledgeable about a topic capable of being sacrificed useless in a specific situation

The third option if im correct

the message which is being conveyed is that if a person does not have the qualified skills to be an writer then he should not and if he becomes then just leave it away..

i think this is it plz check

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.