Under anaerobic conditions, what is the purpose of lactic acid fermentation in the process of producing ATP?

Question

Responses

to generate the NAD+
needed for glycolysis to extract energy from glucose

to generate the pyruvic acid needed as an input for the Kreb’s cycle

to generate the oxygen needed as an input for the Electron Transport Chain

to generate the glucose needed as an input for glycolysis in the cytoplasm

Answer 1

to generate the NAD+ needed for glycolysis to extract energy from glucose