Would be much apprciated,
which of the following inventions contributed to the increase of industry in cities in the late 1800s?

a.
water power

b.
the telegram

c.
electric power

d.
the plow

C.electric power

Explanation:

Electric power meant the industrialization of several cities that prior to this were too far away from the possible resources that made it possible for factoriues to work in a proper way, Electric current helped get the energy necessary to towns where this kind of work was not possible because of the lack of resources. Electric power and then the invention of electric engines helped the development of industry cities in the late 1800`s.

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.