You are a scientist who studies the epigenetic effects of maternal behavior in rats. Which of the following experimental manipulations will lead to an INCREASED stress response in young rats whose mothers lick and groom them?
A) injection of glucocorticoid agonist (that would stimulate the glucocorticoid
receptor) into young rat brains
B) injection of histone deacetylase inhibitors into young rat brains
C) injection of DNA demethylase inhibitors into young rat brains
D) feeding glucocorticoid receptor inhibitors during early postnatal development