Explanation:
they all have a different meaning
A literary text<span> is a piece of written material, such as a book or poem, that has the purpose of telling a story or entertaining, as in a fictional novel. Its primary function as a </span>text<span> is usually aesthetic, but it may also contain political messages or beliefs.</span>
Answer:
Dahl uses rhetorical devices such as facts.
I would have to say black, because it just fits with most creepy books. Sorry if you can't figure out an explanation.