ACTH has rapid,intermediate,and longer term effects on the function of the zona fasciculata.Which of the following is a target of rapid effects?

A)Adrenal hypertrophy.
B)Cortisol secretion.
C)Steroidogenic acute regulatory (StAR)protein activation.
D)CYP21A2 expression.
E)Low-density lipoprotein (LDL)receptor expression.