***Economics Question***

Which is a budget used for?
a. planning income and expenses (<--- My answer)
b. helping get a better loan
c. keeping track of rising and falling prices (???)
d. eliminating opportunity costs

This feels a bit like a trick question and am torn between a. and c. help?

The case of brown v. board of education was started when a. oliver brown's daughter had to walk 21 blocks to the nearest school when an all-white school was only 7 blocks away. b. oliver brown's son was caught at a sit-in at the local school district. c. oliver brown's son was unable to participate in the school's all-white football team. d. oliver brown's daughter was unable to attend high school because there were none for her to attend.