Final answer:
Fructose-1,6-bisphosphate + 2 ADP + 2 Pi is the correct product after glucose reacts with 2 ATP during the energy investment phase of glycolysis.
Step-by-step explanation:
The product of the reaction between glucose and 2 ATP during the energy investment phase of glycolysis is option C) Fructose-1,6-bisphosphate + 2 ADP + 2 Pi. This phase of glycolysis involves the investment of energy through the consumption of two ATP molecules, which are used to phosphorylate glucose and convert it into a more reactive form. Initially, one ATP molecule phosphorylates glucose to form glucose-6-phosphate, and subsequently another ATP molecule is used to convert fructose-6-phosphate into fructose-1,6-bisphosphate. The hydrolysis of each ATP molecule also produces ADP and inorganic phosphate (Pi).