Analyze the necessity of NADPH in the reduction of specific carbon-carbon double bonds during beta oxidation.

• A. NADPH is only required for saturated fatty acids.
• B. NADPH is essential due to the specific configuration of double bonds.
• C. NADPH is not required; NADH can perform the reduction.
• D. NADPH is used to transport fatty acids into the mitochondria.

Answer: (B)