I believe B: That he feels guilty about having Banquo killed.
I think it was c but I'm not 100% sure its been years since ive read the book
It is important to be surrounded by beauty. Not just in art in everything. Art inspires people, it can inspire young and old. But art objects everywhere you look is overwhelming and can start the idea of plagiarism.
In a house not too small not too large. In a popular city where people have big houses and nice things. One moment someone has silly glasses the next day everyone has them. People copy people to get noticed. At home you hear crying yelling. You can feel the unloving feeling against you.
An Encyclopedia because it is a book or set of books giving information on many subjects or on many aspects of one subject and typically arranged alphabetically.