During lactic acid fermentation, net yield of ATP and NADH

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During lactic acid fermentation, net yield of ATP and NADH per mole of glucose is

1. 2 ATP and 2 NADH
2. 2 ATP and 0 NADH
3. 4 ATP and 2 NADH
4. 4 ATP and 0 NADH

Correct Option: B

Lactic acid fermentation is caused by some fungi and bacteria. The most important lactic acid producing bacteria is lactobacillus. It is used to convert lactose lactic acid in yogurt production. In lactic acid fermentation, NADH is oxidized into 2 molecules of NAD+ with a net gain of 2ATP and 2lactate.
Pyruvate + 2NADH ⇒ Lactic Acid + 2NAD⁺ + 2ATP.