a. Hepatitis-B

b. Jaundice

c. Cholera

d. Typhoid

Answer; a. Hepatitis-B

Explanation: Hepatitis B is a viral infection. It shows symptoms such as nausea, vomiting, weakness, fatigue, etc. This disease is a type of liver infection that develops in liver failure later in life. It also increases the risk of developing liver failure or cancer. It is transmitted through sexual intercourse or from mother to fetus.