several molecules are produced as a result of glycolysis. What is the net gain of ATP, pyruvate, and NADH when one molecule of glucose undergoes glycolysis

A. 2 ATP, 2NADH, and 2 pyruvate
B. 4 ATP, 1NADH, and 2 pyruvate
C. 4 ATP, 2NADH, and 4 pyruvate
D. 2 ATP, 1NADH, and 1 pyruvate