A) The story will be long and tedious. That is the answer.
The second choice is a fragment, not a complete sentence.
I believe the correct choice is number one, because if you turn the sentence around, it answers the question of why the crowd is gathered. You may want to confirm on the website chompchomp.com (Grammar Bites).
I think it's saying that power is not every thing
I know how to do persuasive
If you need help with them I can do them
The horses pulled the wagon up the hill, trotted down the other side, an then paused to rest at a stream.
