What Is the Difference Between an Active Continental Margin and a Passive

What is the difference between an active continental margin and a passive continental margin?

A) A passive margin is the site of an ancient continental rift,left behind when seafloor spreading moved offshore,whereas an active margin is an active plate boundary.
B) A passive margin is passively carried along by plate tectonics in a transform system,like the San Andreas whereas an active margin is a trench.
C) An active margin receives large amounts of sediment whereas a passive margin is sediment starved.
D) An active margin has earthquakes whereas a passive margin has quiet erupting (aka passive) volcanos.