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: Pathology
Homer's syndrome is associated with: March 2010, March 2013 
Select and explain. 
A. Bronchiectasis, B. Apical lung carcinoma, C. Chronic bronchitis, D. Bronchial asthma
B: Apical lung carcinoma
Answer: B: Apical lung carcinoma 
Explanation: Ans. B: Apical lung carcinoma