I think A but I`m not a hundred % sure. :)
Indoor electric lamps, telephones, electric steelcars, and automobiles.
<span>The correct answer is the last option. A guild is
an association of artisans or merchants who oversaw and trained new merchants
(apprentice). They were organized in a manner of a professional association, trade
union, cartel, and secret society. The important result of guilds is emergence
of universities of Bologna, Paris and Oxford.</span>
I believe the answer is the Ohio river.
He is a part of Trump's cabinet members.
He wanted to free slaves on the precedent that all men are created equal.