which sentence best describes how the processed of westward expansion affected American political culture?

a. The need for labor lead to the abortion of slavery, and increased respect for personal liberty.
b. The concept of expansion led to an excepting culture, and also inspired involvement in international politics.
c. The culture of settlers led to a respect for self reliance, but also led to discrimination against Native Americans.
d. The addition of new states led to a respect for states rights, but also led to a decrease in the power of urban majority.

c. The culture of settlers led to a respect for self reliance, but also led to discrimination against Native Americans.