Answer:
The correct answer is A. inhibits activity of phosphofructokinase (PFK) allosterically . See the explanation below, please.
Step-by-step explanation:
ATP inhibits the enzyme phosphofructokinase 1, regulating it allosterically. At a higher concentration of ATP, it binds to a different enzyme site from the active site by inhibiting it and lowering the affinity for its substrate (fructose 6-phosphate)