Which disease appears in the list among infectious or exposure categories?

• A. Hypertension
• B. Cancer
• C. Arthritis
• D. Meningitis

Answer: (D)

Infectious diseases are those caused by pathogens and capable of spreading through contact or exposure. Meningitis is an infection of the membranes around the brain and spinal cord, caused by bacteria, viruses, or fungi, and it is commonly listed in infectious or exposure categories because of its contagious and exposure-related aspects in some forms. The other options—hypertension, cancer, and arthritis—are non-infectious conditions: hypertension is a cardiovascular issue, cancer is a malignant growth with multifactorial causes, and arthritis is joint inflammation that is usually autoimmune, degenerative, or inflammatory, not an infectious disease. So meningitis fits the infectious or exposure category.