Adam is making a diorama to show early cooking methods in Europe. Since his ancestors hailed from Germany, Adam creates a tiny replica of a cabbage to put on the primitive table. He wants to provide a snapshot of making sauerkraut by fermenting cabbage. Adam adds what looks like a tiny glass jar on the table. To complete his historical diorama, what else should Adam add to the little table?

A.
vinegar

B.
salt

C.
sugar

D.
lye