When Comparing Ionotropic and Metabotropic Receptors Which of the Following

When comparing ionotropic and metabotropic receptors which of the following is true?

A) Ionotropic receptors mediate their effects faster than metabotropic receptors.
B) Metabotropic receptors mediate their effects faster than ionotropic receptors.
C) A single ionotropic receptor can activate a variety of second messenger effects in the cell.
D) Metabotropic receptors can directly mediate the flux of ions across the cell membrane.
E) Metabotropic signaling within the cell is terminated when the ligand un-binds from the receptor