I presume you have these lines in mind: "CALIBAN (kneeling): As I told thee before, I am subject to a tyrant, a sorcerer that by his cunning hath cheated me of the island."
The correct answer is B: He is enslaved by a tyrant. He then explains that his tyrant (Prospero) has cunningly deceived him and took his island from him. Caliban wants Trinculo and Stefano to help him murder Prospero and retrieve the island.
The answer to your question is A. - Them because you are referring to the crumbs and just not something random, in which case you would use "it". I hope this helps you! Have a great day!!
