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: Pharmacology
Which of the following Antihypertensive is preferred in cases of comorbid Diabetes Mellitus 
Select and explain. 
A. Nitrates, B. ACE inhibitors, C. β - blockers, D. Calcium channel blockers
B: ACE inhibitors
Answer: B: ACE inhibitors 
Explanation: ACE inhibitors are the drug of choice for Hypertension with Diabetes Mellitus.