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
Hypokalemia is seen with -a) Frusemideb) Cortisolc) Amilorided) Addison's disease 
Select and explain. 
A. ac, B. a, C. ad, D. ab
D: ab
Answer: D: ab 
Explanation: Cortisol at high doses may exert certain mineralocorticoid activity leading to increased retention of sodium and water and increased, excretion of potassium. This leads to hypernatremia and hypokalemia.
Furosemide is a loop diuretic that causes increased excretion of potassium leading to hypokalemia.

About other options.

Amiloride is a potassium sparing diuretic and produces hyperkalemia.
Manifestations of Addison's disease occurs primarily due to mineralocorticoid deficiency.