The correct answer is B. Wuhan.
The first case of the coronavirus disease was observed in Wuhan, China, in December 2019. The disease was initially called 2019-nCoV, but was later renamed COVID-19. COVID-19 is a respiratory illness caused by a virus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
The virus is thought to have originated in bats, and it is believed that it was transmitted to humans through an intermediate animal host, such as a pangolin. The virus can spread from person to person through respiratory droplets produced when an infected person coughs or sneezes. These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.
COVID-19 can cause mild to severe respiratory illness, including pneumonia. In some cases, it can lead to death. The elderly and people with underlying medical conditions are at higher risk of developing severe complications from COVID-19.
There is no specific treatment for COVID-19. Treatment is supportive and includes measures such as rest, fluids, and medications to relieve symptoms. In severe cases, patients may need to be hospitalized and receive oxygen therapy or mechanical ventilation.
There are several vaccines available to prevent COVID-19. These vaccines are safe and effective, and they have been shown to reduce the risk of getting sick with COVID-19.
The best way to protect yourself from COVID-19 is to get vaccinated, wear a mask, practice social distancing, and wash your hands often.