Answer: alternative C.
Explanation: The process in which the endproduct of a metabolic pathway binds to enzymes that are placed in the same pathway is called feedback inhibition. It is a strategy to diminish the production of this endproduct, regulating the whole pathway until the endproduct concentration decreases and so the production can restart. While the endproduct is binding to the enzymes, they aren't able to bind to other molecules in order to produce more of the endproduct, characterizing this method as an inhibition.