Which of the following scenarios would most likely lead to a change in DNA that would increase genetic variation in the individual’s offspring? Question options:

a)

A G - C base pair changes to an A - T base pair randomly during meiosis in a young woman.

b)

An A - T base pair changes to a C - G base pair during mitosis in a liver cell of a young man.

c)

A virus inserts nine base pairs into a lung cell of an elderly man.

d)

UV radiation mutates the skin cells of a pregnant mother, changing two G bases to T bases.