The faith of the iranian origin is the baha'i faith
Complex behaviors that are innate, fixed, and universal are called instincts.
Instinct is a fixed response to a certain stimulus, or inclination towards a certain behavior which is universal, meaning that it happens in every organism. Instincts are innate, meaning that you are born with them and cannot learn them.
The answer is D.
Trust me on this, I know that because I am taking the same course right now.
Why does the US have a two-party system? The US has a two-party political system because of two structural features in American politics: single-member districts and winner-take-all elections. Both features encourage the existence of 2 major parties, as smaller parties face great difficulty in winning elective office.