What conclusion can be drawn from the author's description of how thomas edison told nikola tesla, "spare me that nonsense," when tesla argued that ac generators would work better than dc generators in "nikola tesla, inventor"?
a. edison had not yet invented the electric light bulb at this point.
b. tesla was quite jealous of edison's fame and wealth.
c. edison could be very stubborn and difficult to work with.
d. tesla was speaking about something he did not understand.

Which is an example of finding common ground when addressing a counter argument? a. products with genetically modified organisms (gmos) in them are frankenfoods that are unnatural, dangerous, and foul tasting. b. it’s really not important that some people feel texting while driving isn’t a big deal; it’s a fact that it’s dangerous and should be illegal. c. while both sides agree that processed foods are more convenient, the damage they do to a person’s health should not be ignored. d. testing on animals has produce several lifesaving vaccines and medicines that have saved countless human lives.