The right answer is the C: Slave codes gave whites more power over enslaved people. Slave codes were, in fact, a group of laws passed by the white settlers, who, fearing slave uprisings, decided to restrict slaves' rights. As a result of these laws, slaves were not allowed to own any property or to gather in large groups. Furthermore, it was illegal to instruct a slave, and they were not permitted to get married. These are just some examples, but there were other restrictions that were implemented in each individual colony.
In 1855, when Kansas was partaking its legislature elections, the abolitionists then set up their own government in Topeka. On the other hand, many pro-slavery people came from Missouri to vote. They desired to elect pro-slavery officials. They won the elections and set up their own government at Shawnee Mission which are 2 governments. So the answer is letter C.
It is D) Slave trade in Washington I hope this helps :D
California
California joined the Union as a free state.