Bacterial production of the enzymes needed for the synthesis of the amino acid tryptophan declines with increasing levels of tryptophan and increases as tryptophan levels decline. This is an example of .

feedback inhibition

Explanation:feedback inhibition is define as a process in which the end product of a control enzyme that help synthesis the end product.

It refers to the individual cell of our body that can control or inhibit certain actions.its the action taken by our body to regulate certain natural processes. It refers to the process of using of a reaction produce to limit its own further production.

c is the correct answer hope this !