Please please please help me also I accidentally picked C so don’t mind that

I think it is b

Explanation:

A: No because it doesn't kill the animal but it does harm it.

c. no because the animal is being harmed by the parasitism

d. because that animal is not being helped only the parasitism is.

And that leaves b as the only answer left! Although I am not sure if it is correct, pls correct me if i am wrong. Thank you!!

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation: