it is B .
i really hope this helps. since it helps me on FLVS
It started September 1, 1939 and ended September 2nd, 1945
Answer:
The first plants to be farmed by humans are wheat.
The form of travel that greatly helped with the industrialization of north america was the steam engine or wagon.... (only two i remember being in the 1800's that were used a lot could even be the steam boat)
