Unknown Molecule was Reacted with Sodium Ethoxide in Ethanol.

14. A reaction was designed that produced either molecule A below or molecule B, both shown below. In order to decide which molecule was produced, the unknown molecule was reacted with sodium ethoxide in ethanol. The product of that reaction was isolated as an {E} alkene only. Which molecule, A or B, gave the identified product? Draw molecules that explain your answer.(8 points) molecule A molecule B