Which of the following was a cause of americans moving west in the early to mid-1800s? a. availability of new land for farming b. the war of 1812 c. payment by the spanish to settle in western areas d. vengeful native americans

The correct answer is letter A.
Americans started moving west in the early to mid-1800s because of the availability of new land for farming. People wanted a fresh start where they can be able to purchase their own land and try other economic possibilities like farming and gold mining. This trend started during the presidency of Thomas Jefferson.