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
In a patient Kishore having hypertension, propranolol was given. Though the drug controlled hypertension, it reduced resting heart rate to 50/min. Which of the following β blockers can be used in this patient as an effective substitute which does not cause bradycardia ? 
Select and explain. 
A. Pindolol, B. Labetalol, C. Bisoprolol, D. Atenolol
A: Pindolol
Answer: A: Pindolol 
Explanation: None