Answer:
Id say A would be the best one
B) Nationalism sparked political revolution that promoted liberal government (apex)
Well its designated area is Peru and about 1,000 people lived there,they up high in the mountains and machu pichu was part of the inca empire,its nick name was "the lost city" and it was a popular district
A) higher debts for farmers
Not so much happened during the boom crop production in 1870s, but the main result of this event were the crop prices going down. The fresh food prices decreased due to the increased of food supply which eventually led the farmers to have higher debts.
Answer: D) They had been provoked by the presence of troops.