Why is dehydrogenation important in the conversion of succinate to fumarate?

Dehydrogenation increases the energy level of succinate, making it a high-energy molecule.

Dehydrogenation facilitates the hydrolysis of succinate, converting it into fumarate.

Dehydrogenation provides electrons for FAD to form FADH2, necessary for ATP synthesis.

Dehydrogenation releases CO2, which is essential for cellular respiration.