The Research on Epigenetic Processes Carried Out by Michael Meany

The research on epigenetic processes carried out by Michael Meany found that:

A) the behavior of mother rats toward their offspring influences the development of the pups' reactions to stress in adulthood.
B) the extent to which the mother rat grooms the pup in the first week of life is indirectly related to the release of certain hormones in the pup.
C) pups that are licked and groomed more tend to grow into adult rats that are more fearful and show less developed responses to stress.
D) the biological offspring of mothers who typically lick and groom less, when raised by mothers who lick and groom more, have less effective stress responses.