Natural defenses, and floods.
It was "The Lonely Crowd" that analyzed the 1950s as a culture of conformity, since this was during a time in the United States when a "counterculture" was forming--pushing back on the established social and economic status quo.
Answer:
Option A, admitting California as a free state.
Explanation:
The compromise of 1850 was confirmed by 4 separate bills passed by the US congress in 1850, defusing a political confrontation between the slave and free states regarding the status of the acquired territories in the Mexican-American wars.
Admitting California as a free state was proposed by Senator Henry Clay, along with a package of other bills which included the establishment of New Mexico and Utah territories, the ban of importation of slaves in the Columbia district, among others.