Which of the following details shows the impact of resources on Mexico's history?
A
Spanish conquistadors came to Mexico to find gold.
B
Spanish conquistadors came to Mexico to find oil.
C
Early Mexican civilizations traded crops for gold.
D. Mexico's climate made it difficult to build large farms.

Ahistorian has discovered a letter written by an early roman emperor. she translates the letter and discovers that it contains orders to a general before a battle. she works to determine when the letter was written to figure out which battle the letter references.the historian in the passage is most clearly demonstrating which historical thinking skill? a. identifying causes and historical contextb. thinking chronologicallyc. making and evaluating arguments and interpretationsd. analyzing historical sources