If I am not mistaken D is your answer.
Answer:
Reconquista, Spanish Inquisition, conquistadors travel to new world, then convert the conquered colonies to Christianity
During the 1800s, thousands of settlers traveled west in search of new land and opportunities. Many families traveled in wagons. They followed overland trails across the continent. These trails were often dangerous and difficult to travel on. For settlers to reach the California coast they had to cross the Rocky Mountain chain.The settlers had to cross the Rocky Mountains to reach Oregon's Pacific Coast.
Mississippi river is your answer
