The law of conservation of energy is an important law of physics. Basically, it says that while energy can turn from one kind into another, the total amount of energy doesn't change. This law applies only to closed systems, meaning systems that can't exchange energy with their environment
B, in writing we can more easily conceal our attitudes.
Explanation:
John Lewis became devoted to pursuing his personal educational objectives and prosperity for his country. He coincided to Dr. Martin Luther King, Jr., who vowed to pursue the civil rights movement after being motivated by his instance in the Bus boycott.