The answer are C and D.
Whenever we <em>noticed a mistake</em> in an article published, but we are <em>not</em> completely <em>sure</em> what exactly is, we <em>should research</em> about the subject, in this case, by reading various <em>historical accounts</em>. After making sure we know what facts were left out, the <em>next step is to inform the edito</em>r of the publicaton about the case.
Answer: The correct answer is : The climax of this story begins when Prospero orders his revelers to unmask the mysterious stranger. They began to look in each of the rooms of different colors until they reached the last one, the black one in the western part of the corridor, everyone is scared to see the intruder in a horrible suit of death and blood. Prospero orders to be caught and unmasked to be able to punish him, but all the guests are very scared and he has to do it himself. Prospero finds out that the stranger is the red death that is there to kill him and also his revelers. The figure faces Prospero and the Prince falls to the dead ground.
The whole sonnet is, in my opinion, about the fact that this woman does not love the poet - she is hiding her feelings well, and thinking about somebody else. So, the correct answer could be either C or D.