Answer:
Well bias means like making somthing sound maybe better or worse in your favor. For example a soccer team looses and you put it like the other soccer team cheated, that would be bias.
In an essay it should only be one I'm pretty sure, but in a narrative as many as it takes to explain a lesson learned. If you were writing a book your conclusion would be whatever comes to you and whatever you feel the characters would do/say/feel.
Can you send a picture of the graph?
Answer:
It builds suspence in the story.
It suggests the difficulty.
POINTS!! GET OFF MY QUESTION!!!