Hi are you talking about the gold rush in California if you are then I have a lot of information on it
Explanation:
When every pencil meant a sacrifice his parents boarded him at school in town, slaving to free him from the stony fields, the meagre acreage that bore them down. His parents are "slaving to free him" - ie. sacrificing their own lives, their own freedom for his sake. To free him from the town.
The answer is C.
Don't worry about "Walter uses fantasies to escape the constant scolding of his wife" this is the result of the conflict but we are trying to find out the conflict.
The answer is character vs character.
Hope this helps :)