Select the descriptor (A, B, C, D): that best describes the relationship between the reactants and products below: Reactant ProductCH3CH3OH + H2O A B C D CH3CH2O^- + H3O^+

A- conjugate acid

B- conjugate base

C- conjugate base

D- conjugate acid

Explanation:

According to the Brownstead-Lowry definition of acids, an acid donates a proton while a base accepts the proton.

If we look at the species ABCD, species A and D donate protons while species B and C accept protons.

C is the conjugate base of A while D is the conjugate acid of B, hence the answer.