Look at the graphics and then select the best answers from the drop-down menus The US Oil Company could be seen as a
because all smaller refineries send their oil to it.
If the delivery wagons failed to do their job, it would
directly affect
If one of the independent oil refineries stopped
producing oil, the US Oil Company would
A meat-industry company could
its profits
by owning businesses that perform all functions at all
levels of production.