If it is extreme poverty then they can not protect them selves (examples: They cant afford a house they can't buy clothing and sometimes can't even afford food!
Answer:
C. a big party where everyone in the town would help to build a person's house
Explanation:
Typically, house-raising is more popular in rural community and almost never happen in Urban Area. In most cases, it's held to help out the neighbor who somehow experiencing some unfortunate disaster (House broke down because of flooding, burned because of gas leak, etc)
The materials used in house-raising usually came from the environment around the neighborhood. In United States , house-raising is most common in states such as Louisiana and Vermont.
A caste is like a class system, and an ethnic group is a race and culture that group together