The process of changing the one chemical substance to another chemical substance is called as chemical reaction.
The total heat of the substance is called as enthalpy. The enthalpy, glucose, and glycogen are not increased in the chemical reactions in livings systems that proceed along catabolic pathways.
Hence, the options B, C, and D are wrong.
The randomness of the system is called as entropy. It increases in the chemical reactions in livings systems that proceed along catabolic pathways. Hence, entropy will be increased.
Hence, the correct option is.