Read the list of facts about john c. fremont.

1. john c. fremont was an army surveyor. he explored the rockies, the oregon region, and the southwest. he make a scientific map of the west.
2. he encouraged americans in california to revolt against mexican rule in 1846.
3. as a civilian, he tried, but failed, to find a route for a railroad across the continent.
4. in 1856, he was the first presidential candidate for the new republican party. he lost.
5. as an officer during the civil war, fremont seized property and freed slaves in missouri. president lincoln grew angry with fremont for exceeding his orders.
6. after the war, he served as governor of the territory of arizona.

based on this information, which statement is the best thesis for an essay summarizing the influence of john c. fremont?

he was a troublemaker.
he took part in the effort to settle the american west.
he was an army surveyor.
he had more success in the army than he had as a civilian.