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
An experimental drug is found to preferentially dilate autoregulatory coronary arterioles without affecting large conducting vessels. It is likely to: 
Select and explain. 
A. Evoke coronary steal phenomenon, B. Mitigate classical angina but not variant angina, C. Produce tachycardia as an adverse effect, D. Useful in CHF
A: Evoke coronary steal phenomenon
Answer: A: Evoke coronary steal phenomenon 
Explanation: None