This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Raised ICP and Brain death, Subject name: Medicine
A 26-year-old man is having treatment with chemotherapy for Hodgkin's lymphoma. During his treatment, he has severe vomiting. Which location in the brain is responsible for his symptoms? 
Select and explain. 
A. Area postrema, B. Tuber cinereum, C. Organum vasculosum Lamina terminalis, D. Median Eminence
A: Area postrema
Answer: A: Area postrema 
Explanation: Option B- Present in the ventral pa of hypothalamus, connects hypothalamus to the pituitary & transpos hormones from hypothalamus- pituitary Option C- used for osmoreceptors which makes us thirsty so we drink water. Question asks about the Chemoreceptor trigger zone (CTZ) which is present in area postrema