Maslow believed that a person was more likely to be happy and successful if basic needs were met

His theory was based on the next position, that all of man’s needs must be satisfied. Maslow wanted to search and understand all motivations of people, which help to feel themselves happily, successfully and comfortably in their life.

So Maslow’s theory shows that all human needs are arranged in special order. The highest position is self actualization, and the lowest one is physiological needs. 

i think your answer is c. measurement system in which the medication dosage was calculated.