A Simple Way of Thinking About the Action of a Steroid

Multiple Choice

A simple way of thinking about the action of a steroid hormone on its target cell is that it _____.

A) requires no admission to enter​
B) ​must find a friend to accompany it in
C) ​can go right in but the admission price is high
D) ​must find a friend to accompany it in and the admission price is high
E) ​must know the right password to enter and to exit