How Do Protein Coats Select the Cargo Molecules to Be

Multiple Choice

How do protein coats select the cargo molecules to be carried by the vesicles they help to form?

A) They electromagnetically attract the correct cargo proteins.
B) The protein coats have a specific affinity for the cytosolic tails of integral membrane proteins that reside in the donor membrane.
C) The coats have a specific affinity for the luminal tails of integral membrane proteins that reside in the donor membrane.
D) The coat proteins directly attach to the cargo proteins in the lumen of the forming vesicles.
E) The coat proteins attach to the extracellular matrix.