Which sentence below shows correct use of em dashes?

by the end-of-the-story, no one could believe it the main-character, was dead.
by – the end of the story no one could believe it, the main – character was dead.
by the end of the story, no-one could believe it the main, character – was dead.
by the end of the story – no one could believe it – the main character was dead.

Define the followings summary main idea paragraph i need a answers right now

According to the veteran prisoners, why was wiesel lucky that he was brought to the camp late

What is going to happen to all that milk? " said someone. "jones used sometimes to mix some of it in our mash," said one of the hens. "never mind the milk, comrades! " cried napoleon, placing himself in front of the buckets. "that will be attended to. the harvest is more important. comrade snowball will lead the way. i shall follow in a few minutes. forward, comrades! the hay is waiting." in at least 100 words, why do the animals in animal farm refer to each other as "comrades"?