Answer:
B. Informing the general public about issues
Explanation:
An interest groups are groups of individuals that are interested in a certain topic and seek the greater good for society, among the positive things they do for society are informing the general public about different issues and problems that are affecting society.
I'd say the combustion engine, even though it was toyed with in the mid-west during the cowboy era, it wasn't until after the Civil War in which it was a fully effective gasoline powered engine.
A few things that are similar are first they both trade things, there both powerful countries and yes there both lands in Africa ;). A few differences are the physical land, the culture government, the people, a lot of others things I'm sure if you put your mind to it you can figure out.
