This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
A 42 year old patient comes with obesity, glucose intolerance, hypertension, alkalosis and proximal myopathy. Her ACTH levels did not drop after giving steroids. What is the diagnosis 
Select and explain. 
A. ACTH producing tumor, B. Pituitary adenoma, C. Steroid supplementation, D. Adrenal tumor
A: ACTH producing tumor
Answer: A: ACTH producing tumor 
Explanation: In pituitary adenoma AC TH levels decrease after steroids
In adrenal tumor ACTH levels are not increased.