Final answer:
The use of tobacco is the primary cause of Buerger's disease, a rare inflammatory condition that affects the blood vessels in the hands and feet.
Step-by-step explanation:
The correct answer is b. tobacco. The use of tobacco, particularly smoking cigarettes, is strongly associated with the development of Buerger's disease.
Buerger's disease, also known as thromboangiitis obliterans, is a rare inflammatory condition that primarily affects the blood vessels in the hands and feet. It causes the blood vessels to swell and become blocked, leading to reduced blood flow and tissue damage.
Tobacco is the primary risk factor for developing Buerger's disease. The chemicals in tobacco smoke can damage the lining of blood vessels and trigger inflammation, which contributes to the development of the disease. Other substances, such as alcohol or drugs like marijuana, cocaine, and morphine, may have their own negative health effects but are not directly associated with Buerger's disease.