Which of the Following Point Mutations Is Unlikely to Change

Which of the following point mutations is unlikely to change a protein's ability to function?

A) one that occurs in a noncoding region of DNA
B) one that creates a new codon code for the same amino acid as the original codon
C) one that occurs in somatic cells
D) one that creates a new codon that codes for an amino acid of the same size as that coded for by the original codon
E) one that occurs in germ cells