Answer:
B) missense mutation
Step-by-step explanation:
Missense mutation can be defined as the genetic mutation whereby a change occurs in a single amino acid sequence of a protein.
A missense mutation is a error that is observed in the DNA which is as a result of a wrong amino acid being added to into a protein because of change that was experienced. That single DNA sequence change, results in the formation of a different amino acid codon which the ribosome in living organisms recognizes.
Missense mutation is not a harmful mutation.