Service is being an active helper in the community and taking action that can be of benefit.
Explanation:
it's means man is moving from a primitive stage to a learned stage, man can do things in a smart way, man can be able to think and create solutions for himself, solutions on how to react to things, what to do, how to solve its economical, sociological, scientific, and natural problems. man is changing in a positive way and a task solver.
Answer:
B and A? [I'm not sure about A. It may be D.]
Answer: Yes because the workload can get bigger for people and that causes them to stay up longer and they have to go to sleep later
