Which Statement Correctly Characterizes Bound Ribosomes

Multiple Choice

Which statement correctly characterizes bound ribosomes?

A) Bound ribosomes are enclosed in their own membrane.
B) Bound and free ribosomes are structurally different.
C) Bound ribosomes generally synthesize membrane proteins and secretory proteins.
D) The most common location for bound ribosomes is the cytoplasmic surface of the plasma membrane.
E) All of the above.