What industry comes the closest to being purely competitive in that there are plenty of sellers to keep the costs low for the consumers?

a) cars
b) wheat
c) blue jeans
d) electricity

c) blue jeans

Explanation:

There are far more producers in the world of Blue Jeans than there are of Wheat, Electricity or cars, so the industry that comes the closest to being purely competitive with enough sellers to keep the costs low for the costumers would be the blue jeans industry.

b - those executed came from every social and economic class