What culture influenced by the olmec

Which fact would this be, and how might you verify the truth?

What did factory managers expect women to do when men returned home from the war?

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.