Final answer:
Pregnant women's motivation to quit smoking is a leverage point, amplified by the desire to protect the unborn child and supported by anti-smoking campaigns. These efforts play a crucial role in reducing the risks linked to smoking during pregnancy, such as SIDS and low-birth-weight.
Step-by-step explanation:
Pregnant women being motivated to stop smoking can be best described as a leverage point. This is because, during pregnancy, the desire to protect the developing baby can significantly amplify the motivation to quit smoking. External influences, such as public health campaigns, can further assist pregnant women by providing support and resources.
Anti-smoking advertising campaigns and other programs aim to shift the inelastic demand for cigarettes to the left, meaning they try to decrease the number of people smoking by influencing their behavior. These programs are often tailored specifically to encourage pregnant women to quit because of the high risks associated with smoking during pregnancy, which include premature birth, low-birth-weight infants, stillbirth, and sudden infant death syndrome (SIDS).
Overall, the combination of a pregnant woman's intrinsic motivation and external supportive measures creates a powerful leverage point for ending the habit of smoking, reflecting the potential for significant health benefits for both the mother and the child.