Answer:
B. You have ruined a fun evening by making a fool of yourself.
Step-by-step explanation:
In these lines, we see that Macbeth has encounter Banquo's ghost. This scares him greatly, and he decides to talk to the ghost. Lady Macbeth is embarrassed, and she tries to apologize to the guests, who are unable to see the ghost. Lady Macbeth blames Macbeth in this line, telling him that he has ruined a fun evening by making a spectacle of himself.