Answer: C. the metate, the molcajete, the comal
Step-by-step explanation:
The Metate is a thing used to till things like cocoa. 
The molcajete is something like a small pot, used to crush herbs and spices 
The comal is something like a pan, that you can put over a fire or stove and use to cook. 
So the correct option is the C option.