Answer:
ATP.
Explanation:
Glycolysis may be defined as the process by which breakdown of glucose molecule occurs into the form of ATP. Glycolysis can occur in the presence as well as in the absence of oxygen.
The initial step of the glycolysis is the formation of glucose-6-phosphate from the glucose molecule. The ATP starts this process of the glucose oxidation with the help of the enzyme hexokinase. The first step of the glucose oxidation is the energy driven process that requires the ATP molecule.
Thus, the correct answer is option (4).
