Cholera is an illness caused by a bacterium called \textit{Vibrio cholerae}, which releases a toxin in the gut of an infected person. What effect does this toxin have?
- AIt causes loss of water from the gut into the blood.
- BIt causes loss of water from the gall bladder into the blood.
- CIt causes water to enter the gut from the blood.
- DIt causes water to enter the gall bladder from the blood.