When movies and television shows depict scenes of soldiers on the frontier, should they include african american actors?

a. yes. one-fifth of the soldiers on the frontier were african american.

b. yes. african americans made up 50 percent of new towns on the frontier.

c. no. blacks were prohibited from migrating west to find work or new homes.

d. no. only a few blacks worked on the frontier, as cooks for the us army.