How is a mitochondrion's structure related to its function?

Question

a
The mitochondrion's internal membrane is rigid, which prevents repetitive reactions from occurring inside.
b
Mitochondria have a random folded membrane to increase rigidity and maintain cell shape.
c
The complex folding pattern of the mitochondrion's inner membrane provides many sites where reactions can occur.
d
The complex folding pattern of the mitochondrion's membrane provides transportation of waste materials, which are directly removed to the outside of the cell.

Answer 1

c
The complex folding pattern of the mitochondrion's inner membrane provides many sites where reactions can occur.