What are the causes of problems the mayas and other native american groups face in guatemala

Which of these statements best describes the ambiguity in this excerpt

What were three advantages the north had in the civil war? it was fighting most battles on home ground. it had a greater number of soldiers. it had more highly skilled military leaders. it had a stronger navy. it had a better network of railroads. pick three .

Why do you think jefferson thought lewis was qualified to explore the louisiana purchase? ?