Final answer:
The solutions that can be chosen for a fecal centrifugation test are zinc sulfate and sugar solution.
Step-by-step explanation:
When performing a fecal centrifugation test, there are several solutions to choose from. The correct options are b. Zinc sulfate and c. Sugar solution. These solutions are commonly used to separate and concentrate the parasites and eggs present in a fecal sample. Saline and water are not typically used in fecal centrifugation tests.