Given below are two statements. One is labelled Assertion (A) and the other is labelled Reason (R).

Assertion (A): During fermentation, organisms such as yeast produce ethanol from glucose.
Reason (R): The enzymes pyruvic acid decarboxylase and alcohol dehydrogenase catalyze the conversion of pyruvic acid to ethanol.

In light of the above statements, choose the correct answer from the options given below.