The Proper Amount and Order of Addition of Reagent(s) for the Test

The proper amount and order of addition of reagent(s) for the test for the production of acetoin is

A) 0.6 mL of 5.0% alpha naphthol and 0.2 mL of 40% KOH.
B) 0.6 mL of 40% KOH and 0.2 mL of 5.0% alpha-naphthol.
C) 0.2 mL of 5.0% alpha naphthol and 0.6 mL of 40% KOH.
D) 0.2 mL of 5.0% 40% KOH and 0.6 mL of 5.0% alpha naphthol.