Multi-select problem: How does the next paragraph end?

How to make oyster sauce
Reserve the liquid from a can of oysters.
Collect 4 tsp (20 ml) of canning juice from a can of shucked oysters. Pour this liquid into a small bowl.

Possible answers:
(I) Reserve 1/2 tsp (1.25 ml) of the liquid you reserved from the cans. Marinate the oysters for 3-4 days.
(II) You will not need to use the oysters for this recipe. You can discard them or use them for another recipe.
(III) You can use any number of flavors you like, but brown and red are some of the least traditional options. If you would prefer some more exotic flavors, try squeezing the juice from a large oyster into a glass.
(IV) You can use frozen oysters instead of fresh oysters. Frozen oysters are cold, but still tart.
(II)