MACBETH. Be innocent of the knowledge, dearest chuck, Till thou applaud the deed. Come, seeking night, Scarf up the tender eye of pitiful day; And with thy bloody and invisible hand Cancel and tear to pieces that great bond Which keeps me pale! Light thickens; and the crow Makes wing to the rooky wood: Good things of day begin to droop and drowse; While nights black agents to their preys do rouse. Thou marvell’st at my words: but hold thee still; Things bad begun make strong themselves by ill.
Why does the audience learn from the lines “Be innocent of the knowledge, dearest chuck,/ Till thou applaud the deed”?
A) Macbeth thinks his wife is too ladylike to understand his reasons for Murder.
B) Macbeth will keep Banquo’s murder a secret until after the murder has been committed
C) Macbeth believes his wife is responsible for Duncan’s murder
D) Macbeth is in love with his wife and wants her to remain queen

Explanation: Just to elaborate a little on the answer, it can be added that these lines from Act III suggest that Macbeth will only reveal what he is going to do once it is actually done—commanding to put an end to Banquo's life, his best friend and second victim. Since Lady Macbeth is aware of and supports Macbeth's thirst for power, and she is even more ambitious than him, Macbeth knows that, once she is informed of what he has done, she will "applaud the deed."