A) For it does not require a life long commitment, and it is not C) because it can be any substance not just tobacco!
Thus your answer is A) gradually but completely withdrawing substances from use !
Have a happy life !
:D <span />
C is the only answer that helps the public's health
Researchers report a reduction in mortality rates by 7-19% by eliminating even one serving of red meat from your diet every day.
The number of bones a person has in their body generally depends on their age. A human newborn baby has approximately 270 bones in his or her body. As the person ages and develops, some of the bones fuse together to make larger bones. By the time a person is an adult, they have the standard 206 bones in their body.
