What countries gained territory after ww1?

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?

Which answer best describes an advantage of shipping goods by canal? a) most towns would rather have canals then noisy railroads b) goods could travel very fast downstream in the canal system c) traveling by boat is a much more relaxing way to transport goods. d) heavy loads of goods could travel by boat more easily then if pulled by horses.

What was feudalism? (define the structure)