I believe the answer is C.
Answer:
98% sure it is when to produce
Explanation:
The Kansas-Nebraska Act was unpopular in northern states because "<span>(B) it could increase the number of slave states," since it stated that the slavery issue in each new state would be decided by "popular sovereignty". </span>
Being able to see without the issue of knocking over your oil lamp in the middle of the night. Allowing people to work longer with better lighting.
