The correct option is C Lungs
Tuberculosis is an air-borne disease. It spreads by the inhalation of droplets expelled by a tuberculosis patient. These droplets in the air, enter inside the body of a healthy person through nose. Then from nose they are likely to go to the lungs. Symptoms of the disease are fever, pain in the chest, cough, blood containing sputum, slight rise of temperature in the evening, etc.