Answer:
I told uuu siyoen is already fighting for that
I would agree with you - the conclusion should leave readers with an important thought at the end.
This thought should never be new, or opposing to the previous ideas you had been writing before. It also shouldn't be confusing, but quite conversely - it should explain everything and put everything in place.
Answer: They want there audience to infer what will happen, to understand it themselves. That way it will make for a better read, rather than being told it, a reader can piece together themselves and fully understand the words being said, a great writer will never reveal their plans just as a great magician never reveals their secrets. Writers want you to explore your mind, and find connections bit by bit. This makes for a wonderful book.
Explanation: I love reading it's a passion of mine, i hope this helps
D is the answer. A hook needs to gain attention.