It Takes Much Longer for Sex Hormones and Other Steroids

It takes much longer for sex hormones and other steroids to produce their effects than it takes nonsteroid hormones. Why?

A) Steroids are bigger, slower molecules.
B) Steroids must usually be carried longer distances by the blood.
C) Steroids must relay their messages via relay molecules.
D) Steroids cause target cells to make new proteins, which takes time.