You Have Recently Identified a Molecule That You Believe to Be

You have recently identified a molecule that you believe to be a ligand associated with a signal transduction mechanism. All you know about this ligand is that chemically it is hydrophilic. As a result, you expect it to interact with its receptor

A) on the cytoplasmic side of the plasma membrane.
B) at the outer cell surface.
C) within the cytoplasm of the cell.
D) within the nucleus of the cell.
E) all of the above