Answer:
Option A, admitting California as a free state.
Step-by-step 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.