Anabolism includes reactions in which a. ketone bodies are formed b. structural proteins are used as a potential energy source c. larger molecules or structures are built from smaller ones d. carbohydrate utilization increases

Anabolism includes reactions in which larger molecules or structures are built from smaller ones, for example the synthesis of glucose. Catabolism on the other hand describes processes that breaks down complex structures into simple ones. Examples of catabolic processes include glycolysis and the citric acid cycle among others. 

Option d is correct here

The answer is overmatching