The answer would be D.
In the story, it shows that he leaned his basic numbers by helping his father count and sort the rocks, hinting that he didn’t have the time to go to school and had to learn things on his own, in his own way :)
I would say B and C but I don’t know that for sure... but it makes the most sense.
Answer:
not biased or prejudiced, fair, impartial.
If you are working on a research project in which you must present a short documentary film about the history of your family, the source that would be considered most credible for this project is hand-written letters from your great-great grandmother about her immigration.
You will get the most information from her letters.