Which Statement About Intracellular Receptors That Respond to Physical or Chemical

Multiple Choice

Which statement about intracellular receptors that respond to physical or chemical signals is false?

A) Their ligands can be nonpolar molecules.
B) The estrogen receptor is intracellular.
C) Their chemical ligands are lipid-insoluble.
D) Light can excite intracellular receptors.
E) Intracellular receptors can be transcription factors.