Select all that can contribute to a change in the characteristics of a species over time?

Choose more than 1.

a
a mutation in a brain cell
b
a mutation in an egg cell
c
a mutation in a skin cell
d
a mutation in a sperm cell
e
a mutation in a nerve cell
f
a mutation in a somatic cell

a mutation in a brain cell

a mutation in an egg cell
a mutation in a skin cell
a mutation in a sperm cell
a mutation in a nerve cell
a mutation in a somatic cell