What is an 'aside'? an old fashioned way of saying 'beside'
B
a figure of speech
С
a small order of food (like french fries) added to the meal
D
a remark made on stage that other characters cannot hear

D. a remark made on stage that other characters cannot hear

Explanation: This is right.

you need to post the passage so we know what you’re talking about

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.