The Inner Membrane of a Mitochondrion Is Highly Folded

The inner membrane of a mitochondrion is highly folded. Which of the following explains why this is the case?

A) The folds protect the proteins in the inner membrane from the toxic by-products of cellular respiration.
B) The folds increase the space available for electron transport chains, increasing the efficiency of ATP production.
C) The extra folds make the mitochondrion more efficient at capturing carbon dioxide.
D) The antenna complexes in the inner membrane form clusters that force the membrane into folds.