Explain your ideas about this question in at least 3 well-constructed and complete sentences. (RACE format) Why do you think people try to oppress others?

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.  

it would be d because the however is more proper and the comma is placed in the right spot