Which of the following is one reason it may be harder for one person than another to quit nicotine use?

• A. Nicotine is not addictive, so quitting is equally easy for all individuals.
• B. Everyone experiences the same level of difficulty when quitting nicotine regardless of personal factors.
• C. Access to nicotine replacement therapies guarantees success for everyone trying to quit.
• D. Genetic differences can affect how individuals respond to nicotine and experience withdrawal symptoms.

Answer: (D)

Verified step by step guidance

1. Understand that nicotine addiction varies among individuals due to biological and psychological factors.
2. Recognize that genetic differences can influence how a person's body metabolizes nicotine and how their brain responds to it.
3. Consider that these genetic variations affect the severity of withdrawal symptoms and cravings experienced during quitting.
4. Acknowledge that because of these differences, some people may find it harder to quit nicotine than others.
5. Conclude that the reason quitting difficulty varies is linked to individual genetic makeup affecting nicotine dependence and withdrawal.