Refer to the Figure Above and Then Answer the Question

Multiple Choice

Refer to the figure above and then answer the question that follows.
-Which of the following choices is an example of a point mutation?

A) failure of a chromosome to complete replication
B) pairing of a G on one strand of DNA with a C on the other
C) loss or gain of a chromosome
D) pairing of a G on one strand of DNA with a T on the other
E) failure of a chromosome to be replicated