Following Its Initial Activation,what Becomes of a G Protein

Multiple Choice

Following its initial activation,what becomes of a G protein?

A) The G-protein a subunit containing a GTP eventually reassociates with the G-protein bg dimer.
B) The G-protein a subunit GTP is hydrolyzed to GDP allowing reassociation of the G-protein a subunit and bg dimer.
C) The G-protein a subunit is digested and recycled.
D) It spontaneously loses activity within a few seconds.
E) The receptor becomes internalized.