Property Damage Liability (PDL) insurance.

answer:

I'm not sure what your asking but Property damage liability coverage is part of a car insurance policy. It helps pay to repair damage you cause to another person's vehicle or property. ... It typically helps cover the cost of repairs if you are at fault for a car accident that damages another vehicle or property such as a fence or building front.

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.  

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.