Answer:
C)
Step-by-step explanation:
Phosphofructokinase (PFK) is a key enzyme in glycolysis that catalyzes the transfer of a phosphoryl group from ATP to fructose-6-phosphate and yield ADP and fructose-1,6-bisphosphate a key step in glycolysis. If Springer spaniels suffer from canine PFK deficiency then theprocess of glycolysis will not occur properly, and the dogs would be lethargic and readily tire from exercise