Given the following descriptions, identify which are the features of oxidative and substrate-level phosphorylation.
M. Substrate-level phosphorylation produces more ATP 
N. Oxidative phosphorylation produces less energy 
O. ATP is formed during glycolysis through substrate-level phosphorylation 
P. The exact mechanism of ATP formation in oxidative phosphorylation is chemiosmosis 

• A. M and N
• B. O and P
• C. M, N and, O
• D. M, N, O, and P

Answer: (B)