<span>The answer is C, mystery. Darkness is significant of the unknown.
D would be a reasonable choice, but there is no proof that darkness signifies despair in this case.</span>
<span>APOTHECARY: My poverty, but not my will, consents.</span>
Confrontation always advances the plot, because it causes a lose-lose solution, meaning no one is happy, so there was no solution and confrontation could've made it worse.