In glycolysis, oxidation followed by phosphorylation produces two NADH molecules and two molecules of BPG in step no:

Explanation

Step number 6 is the correct option because glyceraldehyde-3-phosphate is oxidized and phosphorylated to form 1,3-bisphosphoglycerate. In this reaction, NAD⁺ is reduced to NADH, and an inorganic phosphate is added, creating a high-energy intermediate. Since each glucose produces two glyceraldehyde-3-phosphate molecules, this step generates two NADH molecules and two molecules of 1,3-bisphosphoglycerate.The other steps are incorrect because they do not produce both NADH and 1,3-bisphosphoglycerate. Step 4 only splits fructose-1,6-bisphosphate, step 5 is just an isomerization, and step 7 generates ATP by using 1,3-bisphosphoglycerate rather than forming it. Only step 6 combines oxidation and phosphorylation to produce these molecules.