Answer:
It is an important drug to use because it dosage can be increased so as to soothe pain when it increases or when tolerance forms.
Explanation:
Ceiling effect: Is a situation that occurs when a drug gets to the level of maximum effect such that increasing the dosage of such drug does note enhance its effectiveness.
Declining skill or fitness level from taking a break from excercise is formally referred to as ...
reversibility
C looks like it would not be long term goal.
Hope this helps!
