The correct answer is B. Malaria.
Malaria is a disease caused by a parasite that is spread to people through the bite of an infected female Anopheles mosquito. The parasite then infects red blood cells, causing fever, chills, and anemia. In severe cases, malaria can lead to death.
Chicken pox is a viral disease that is spread through the air by coughing and sneezing. It causes a rash of blisters on the skin. Chicken pox is usually a mild disease, but it can be serious in people with weakened immune systems.
Black fever, also known as kala-azar, is a parasitic disease that is spread to people through the bite of an infected sandfly. The parasite then infects the liver, spleen, and bone marrow. Black fever is a serious disease that can be fatal.
Cholera is a bacterial disease that is spread through contaminated food or water. It causes severe diarrhea and vomiting. Cholera can be fatal, but it is treatable with antibiotics.
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