Answer:
b. strengthened the ability of owners to capture slaves,
Explanation:
One of the main points or five separate bills of the Compromise of 1850 was known as The Fugitive Slave Act of 1850: this specifically deals with the capturing of escaping slaves by citizens. Also, it involved a total rejection of slaves an opportunity to have a trial by jury.
Hence, in this case, the correct answer is option B: strengthened the ability of owners to capture slaves,