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
In hyperkalemia with brady cardia treatment is- 
Select and explain. 
A. Calcium gluconate, B. Salbutamol, C. Steroid, D. K+resin
A: Calcium gluconate
Answer: A: Calcium gluconate 
Explanation: None