The Figure Below Shows a Mitochondrion, Emphasizing Its Inner and Outer

The figure below shows a mitochondrion, emphasizing its inner and outer membranes.
The inner membrane of the mitochondria is thought to have evolved from

A) a bit of plasma membrane from the early eukaryotic cell that engulfed a bacterium.
B) the membrane surrounding the lysosome that engulfed a bacterium once it was inside an early eukaryotic cell.
C) the plasma membrane of a prokaryotic cell engulfed by an early eukaryotic cell.
D) infoldings of the plasma membrane of an early eukaryotic cell.