What type of problems do high school STEM programs teach students to solve? A.scientific
B.real-world
C.sociological
D.economic

B. OR A.

hope this helps

In glycolysis, NAD+ is reduced to form NADH.

Explanation:

NAD+ gains an hydrogen electron in the glycolysis pathway which translates to a reduction and not an oxidation.

There is also a subsequent oxidation that takes place in the electron transport chain system.

This facts makes NAD+ as being reduced to NADH in glycolysis as the right fans best option to choose from.