Various Models Argue That Smoking Provides Certain Advantages to the Smoker

Various models argue that smoking provides certain advantages to the smoker. Which is not an example of such proposed advantage?

A) Smoking allows the smoker greater mood control, specifically by controlling nicotine delivery.
B) Smoking provides increased concentration.
C) Smoking allows the smoker a time of increased energy and activity.
D) Smoking reduces the irritability and stress that occurs between cigarettes.