Which of the following is NOT a disease associated with the circulatory system?

The correct answer is C, as asthma is primarily a respiratory condition rather than a circulatory system disease. Asthma affects the airways and the lungs, leading to breathing difficulties due to inflammation and narrowing of the air passages.

In contrast, Hodgkin's disease is a type of lymphoma, which is a cancer affecting the lymphatic system, part of the circulatory system involved in the immune response. Hypertension, or high blood pressure, is directly related to the cardiovascular system and can lead to various complications like heart disease and stroke. Varicose veins, which are swollen and enlarged veins, are also connected to circulatory issues, particularly in the legs, indicating dysfunction in blood return to the heart.

Recognizing these distinctions is crucial for understanding the various diseases and conditions associated with specific bodily systems.