Answer:
C) These vessels were found in Spain, and are believed to have been created by the Spanish peoples around 3000 BCE.
Explanation:
It’s considered ironic that he praises the castle atmosphere because the atmospheres is in actuality quite tense seeing as the Lord and Lady Macbeth are in disagreement about what to do with him. It’s also ironic because the Lady is hospitable but only in order to lower his guard so that she can kill him.