Which of these diseases is communicable?

Correct option is A

The correct answer is (a) Plague.
· Plague is a communicable disease caused by the bacterium Yersinia pestis. It spreads from person to person or through bites from infected fleas that live on rodents like rats. There are three main types of plague: bubonic, septicemic, and pneumonic. Pneumonic plague is highly contagious and can spread through respiratory droplets.
Information Booster:
Hypertension:
· A condition where the blood pressure in the arteries is consistently elevated, often linked to lifestyle factors like diet and stress.
Cancer:
· A non-communicable disease caused by abnormal cell growth, leading to tumors or the spread of malignant cells.
Diabetes:
· A metabolic disorder characterized by high blood sugar levels, resulting from insulin deficiency or resistance.