Which of the following statements best explains why testosterone, a lipid-soluble signaling molecule that crosses the membranes of all cells, affects only target cells?

A) Only target cells retain the appropriate genes regulated by testosterone.
B) Only target cells contain the intracellular receptors for testosterone.
C) Only target cells possess the cytosolic enzymes that transduce the signal from testosterone to adenylyl cyclase.
D) Testosterone initiates a phosphorylation cascade only in target cells.