Can someone plz help me? :(

The idea of liberalism in eighteenth-century british politics: a. had mainly a civic and social quality. b. prompted two eighteenth-century leaders, joseph mccarthy and hugh mccarran, to demand independence for ireland. c. brought great wealth and power to its main voice, john locke. d. was compatible with inequalities in wealth and well-being. e. had the same meaning as liberalism in twenty-first-century american politics.

This is the belief that a nation must develop and maintain a strong military force in order to pursue and defend its national interests.

What is the name for the main idea behind the settling of western lands by americans in the early-1800s?