Answer:reciprocity
Explanation: Reciprocity is a norm amongst people which is due to the act of kindness committed by one person to us ,that result to us feeling encouraged and motivated to commit the act of kindness back to those people , it is a norm of sharing out of the kindness of our heart because people have also been kind to us.
Answer:
Option: b.) Vietnam
Explanation:
During 1965, the involvement of the US troops in the Vietnam War activated the most and biggest protests among students. The student movement arose as the government involvement increased in Vietnam as these students saw it as unnecessary. Students began to protest in campus hold demonstrations and marches.
William B.Travis Because he didn't get fair trial for arrest..
Answer:
The best option is D. decreasing costs while increasing positive consequences
