This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiration, Subject name: Pathology
Bronchoalveolar carcinoma presents as:(1991) 
Select and explain. 
A. Hemoptysis, B. Collapse, C. Effusion, D. All
D: All
Answer: D: All 
Explanation: Ans: d