Leaders can be found in all fields. In the field of science, is an example of a leader whose innovations and discoveries have helped doctors understand conditions such as diabetes and Alzheimer's. A. Indra Nooyi B. Bill Gates C. Dr. J. Craig Venter D. Dr. Stephen Hawking

answer; i believe the two groups were irish immigrants and chinese immigrants;

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

your answer is c i hope that

newly independent countries of the former ussr