Come up with a question and reasoning that would justify this answer: (C)

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The question is: Roundworms can be free-living or live on a what?
Options:
- (A) soil
- (B) nest
- (C) host
- (D) root
- (E) stem
- (F) habitat
- (G) food
- (H) commune
Step-by-step reasoning process: Roundworms may be free-living or parasitic. Parasites Shortfin makos host a variety of parasitic copepods. Roundworms may be living on a host or free-living.
