What Allows Receptors for Extracellular Signaling Molecules Present on the Responding

Multiple Choice

What allows receptors for extracellular signaling molecules present on the responding cell's surface to recognize such molecules so readily?

A) They bind the signaling molecules with low affinity.
B) They bind the signaling molecules with high affinity.
C) They denature the signaling molecules.
D) They stabilize the signaling molecules.
E) They infiltrate the signaling molecules.