<span>Based on his inaugural address, John F. Kennedy viewed responsibility as a core American value. Reading through his address, this is very obvious and the most famous quote he used in the address, "And so, my fellow Americans: ask not what your country can do for you; ask what you can do for your country." shows his core belief is responsibility of Americans.</span>
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.
I think the answer would be D. because all of the above are true.