Answer:
e. Bacteria in the oysters may have caused the illness.
Step-by-step explanation:
A hypothesis is an unverified statement, once refuted or confirmed it will cease to be hypotheses and would be a verified statement. The hypothesis is a scientific conjecture that requires a contrast with experience.
In the hypothesis "Bacteria in oysters may have caused the disease", we want to give an answer regarding that a number of people became ill after eating oysters in a restaurant, being just an assumption from the information given , which has not been verified.