Which of these statements about signal transduction is false:
A. Information from the outsideof the cell can be transmitted to the nucleus
B. G-protein coupledreceptors move to the nucleus upon ligandbinding.
C. Receptor tyrosine kinases, when bound by a ligand,phosphorylate substrates on the cytosolic side of theplasma membrane
D. Rapid elevation of cytosolic calcium ionstriggers many cellular responses including activation ofenzymes.