Class systems of stratification are characterized as?

[rozmeen]

A, closed
B. restricted
C. Fluid
D. Rigid

2. In Comparison to class system, caste systems of stratification
a. are extremely rigid
b. allow marriages between people of different strata
c. have few barriers to social interaction among people from different strata
d. rank people on their basis of achievements

3. The UN is on track to reduce by half absolute poverty in the world by 2015. There is one region of the world where the goal will likely not be met. That region is
a. southeast asia
b. Sub-saharan africa
c. central america
d. Eastern europe

4.A country is considered modern if it possesses at least eight characteristics. Which one of the following is not one of those eight?
A. A system of mass media and communication is in place
B.Energy to produce food, goods, and services revolves around the use of oil
c.People feel a sense of loyalty to a country.
dPeople feel a sense of loyalty to an extended family

[NaSTY]

But these type of question are difficult to be answered.