What were the Freedom Riders protesting?

Freedom Riders were groups of white and African American civil rights activists who participated in Freedom Rides, bus trips through the American South in 1961 to protest segregated bus terminals. Freedom Riders tried to use “whites-only” restrooms and lunch counters at bus stations in Alabama, South Carolina and other Southern states.

Explanation:

the answer is: must pay taxes on profits

since it is considered as a part of your income, profits from investments is eligible for tax payment.

the tax from your investment could be influenced by how long you decided to sell it. united states promotes keeping your investment for long term period. so, the tax rate for investments that you sell in less than one year is typically higher compared to investments that you sell in more than one year period.