How are interest groups different from political parties?

a. Interest groups are made up of corporations and businesses; political parties are made up of individuals.
b. Interest groups seek to attain their goals from the outside; political parties seek to attain their goals from the inside.
c. Interest groups are separated into Democrats and Republicans; political parties are separated into many more interests.
d. Interest groups influence policies through electioneering and governing; political parties do so through lobbying.

b. Interest groups seek to attain their goals from the outside; political parties seek to attain their goals from the inside.