Answer:
The correct answer will be-hypothalamus
Step-by-step explanation:
A tumor is the group of abnormal cells formed due to uncontrolled division of the cells. When it is present in the brain is known as a brain tumor.
When tumor is formed in the brain, it presses the part of the brain physically and thus disrupts the functioning of that part of the brain.
In the given question, since the patient experiences the disturbing hunger and thirst which is controlled by the hypothalamus of the brain therefore the tumor would have formed in the hypothalamus.
Thus, -hypothalamus is the correct answer.