I believe the answer is b. However I'm not quite sure. I think b would be the most reasonable answer.
Answer: Effective Managers.
Explanation:
An effective manager is a manager that delivers successfully on tasks that he is in charge of and is very good in decision making. Manuel is well known for his ability to meet his objectives set and accurate decision making.
Scientific method involves ways in which you would solve something while the others are just assuming or wondering what could happen.
I don’t get what your saying
But could u give more explanation