Allegra Tries to Lead a Healthy Life

Allegra tries to lead a healthy life.She maintains a vegetarian diet,avoids fatty foods,and receives a flu shot every year.She tells others that her only vice is smoking.While she knows that she should quit,she believes that her otherwise healthy lifestyle will offset the effects of tobacco.Is she right?

A) Yes.Studies show that the negative effects of smoking can be offset by other healthful practices,as long as those practices are consistent.
B) Yes,but only until one reaches the age of 50;then tobacco affects everyone the same way,regardless of other lifestyle practices.
C) No.A vegetarian diet will actually increase the effects of tobacco on the body.
D) No.Smoking is the single largest cause of premature death and the only way to offset the negative effects of smoking is to quit.