After a Ligand-Receptor Complex Enters a Cell, How Is the Ligand

Multiple Choice

After a ligand-receptor complex enters a cell, how is the ligand disaggregated from the receptor so that the receptor can be reincorporated in the cell membrane?

A) Alteration of lysosomal pH separates the molecules
B) Both return to membrane, and ligand is degraded extracellularly
C) Covalent binding of two ligands to each other
D) Degradation of receptor and ligand in the lysosome
E) Transfer to nucleus where ligand binds DNA