Answer:
triangular trading routes
Explanation:
Because the 2nd one is in Spain, the 3rd one should be in north America, and the 4th one is also in North America in the 13 colonies.
Cristopher Mc Candless had a chaotic childhood,marked by a stormy relation between his parents,with a physically and mentally abusive condition,due to frequent differences throughout his parent´s marriage. He lived in a violent home,where his father beat and disparaged his mother, a dark reality that Christopher and his sister were forced to conceal.
His anger might be justified considering the repressed feelings during his childhood and adolescence but the final decision was somehow disproportioned and solved nothing.