Answer:B.
the doctrine of separate but equal
Explanation:
Yea i think its 3 too because in science i never heard them talk about Ancient Greece
The basic salary is $174,000 per year, plus benefits, such as retirement and health benefits. They're eligible for a pension after they reach 50 years of age and 20 years of service, and can receive pension after a minimum of 5 years of service under other conditions.
Four of the earliest agrarian societies developed in fertile river valleys. Since people had already tamed plants and animals in those areas, societies had a head start. The first of these was in Mesopotamia, where Iraq is today. The land between the Tigris and Euphrates rivers was especially fertile
The correct answer is participant observation
Participant observation is an excellent methodological resource for field research, makes it possible to obtain a holistic and natural perspective.