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
Adverse effects that limit the use of adrenoceptor blockers include: 
Select and explain. 
A. Bronchoconstriction from α blocking agents, B. Heart failure exacerbation from β blockers, C. Impaired blood sugar response with α blockers, D. Increased intraocular pressure with β blockers
B: Heart failure exacerbation from β blockers
Answer: B: Heart failure exacerbation from β blockers 
Explanation: None