Given the information about following drugs, which would you…

Given the information about following drugs, which would you expect to have the highest potency?                Recall that   Drug Kd A 0.2 μg/ml 10 B 0.4 μg/ml 100 C 0.4 μg/ml 10 D 0.6 μg/ml 50 E 0.8 μg/ml 0.5