The answer is D. In caste systems you are born into a certain level of society and cannot change that.
I’m pretty sure it’s the Jewish diaspora. I’m not 100% sure so please tell me if I’m wrong.
C since in 2011, the South Sudanese voted on a referendum in which about 99% of the voters voted to separate from Sudan and to become an independent country.
Environment related opportunities for service include lake cleanup. The correct option among all the options that are given in the question is the first option or option "a". There are several other types of services also related to environment. I hope that this answer has come to your help.
