A is yours answer I think
C. Dinosaur footprint as it is the only body part that is stated in the choices.
Hope this helps :)
Parasite: Parasites are different from predators because parasites only take resources from one host, whereas predators eat many prey. A good example of this is the trematode parasite Schistosoma mansoni. An adult schistosome parasite lives inside of just one human host
