Question

which strategy helps a person stop smoking?
setting a budget for cigarettes
getting medicine
keeping the same personal behaviors
maintaining an old social routine

Explanation:

Setting a budget for cigarettes may not stop smoking as it doesn't address the physical or psychological addiction. Keeping the same personal behaviors and maintaining an old social routine are likely to reinforce smoking habits. Getting medicine such as nicotine - replacement therapy or prescription medications can help manage withdrawal symptoms and cravings, which aids in quitting smoking.

Answer:

getting medicine