When Pembrey and Colleagues Found That the Nutrition Level of Grandparents

Multiple Choice

When Pembrey and colleagues found that the nutrition level of grandparents during their own childhood was related to the mortality rates of same-sex grandchildren, this was a possible example of

A) X chromosome inactivation.
B) transgenerational epigenetic modification.
C) Y chromosome modification.
D) familial paramutation.
E) intra-generational mutation.