I think it's A not sure tho
The answer here is ATP.
ATP is used in the first step of glycolysis to convert glucose into glucose-6-phosphate (that's where the phosphate comes from).
I would say A or C I’m not sure but if I had to choose A or C my best guess would be A
I hope this helps :)
Answer:
reactant and product
1. No credible source
2. Check if its a biased answer
3. Examine evidence