Do'nt answer if you do'nt know 1. what is a duty placed on goods that are imported or exported? a. tax treaties b. tariff c. value-added tax d. partnership taxation which term refers to the post-world war i american authors who established their talents and popularity during the 1920s? a. lost generation b. fireside poets c. bloomsbury group d. beat generation 3. what did americans discover after the race riot in oklahoma in 1921? a. african americans were always submissive and meek regardless of the circumstances. b. african americans were ready to band together and protect their community. c. african americans were capable of defending their homes and businesses. d. african americans would seek retribution through legal means over violence.