I think it might be “It introduces the story and sets up the coming events.” I’m not sure so take this with a grain of salt...
Answer:

According to blank slate theory, the mind is completely blank at birth. From there, education, environment, and experiences – which are external, as well as material and/or immaterial – shape the child's process of development. This leaves a lasting effect on who they become.
Answer:
It's because he sees the future as not as tragic as his past.
Explanation:
Answer:
B. active
Explanation:
In active the person is doing an action (people are skiing).