Concept:A tag question repeats the auxiliary verb and subject of the main clause.
If the main statement is positive, the tag is negative.
Explanation:The sentence is: "You think I am hungry, ..."
Here, the main clause is "You think", not "I am hungry".
The main verb "think" needs the auxiliary "do" to form a tag.
So the statement becomes: "You do think I am hungry."
Since the statement is positive, the tag must be negative.
Therefore, the correct tag is "don't you?"
The other options do not match the subject and auxiliary of the main clause.
Answer:B. don't you