Refer to the Equation Below, Summarizing a Step in Lactic $\rightarrow$

Refer to the equation below, summarizing a step in lactic acid fermentation. Pyruvate + NADH + H⁺ $\rightarrow$ lactate + NAD⁺
In this reaction, which compound is oxidized and which is reduced?

A) Pyruvate is oxidized and lactate is reduced.
B) NADH is oxidized and lactate is reduced.
C) Pyruvate is reduced and NADH is oxidized.
D) NAD⁺ is reduced and pyruvate is oxidized.
E) Lactate is oxidized and NADH is reduced.