This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardio thoracic surgery  , Subject name: Surgery
Indications for lung transplantation are all Except 
Select and explain. 
A. COPD, B. Alpha 1 antitrypsin deficiency, C. Cystic fibrosis, D. Ca lung
D: Ca lung
Answer: D: Ca lung 
Explanation: The indications span the gamut of lung diseases, but in some respects, the distribution of indications differs among countries. According to aggregate international data, the most common indications in the last few years have been the chronic obstructive pulmonary disease (COPD), ~29%; idiopathic pulmonary fibrosis (IPF), ~28%; cystic fibrosis (CF), ~16%; a1-antitrypsin deficiency emphysema, ~3.5%; and idiopathic pulmonary aerial hypeension (IPAH), ~3%. Other diseases have made up the balance of primary indications, and retransplantation has accounted for ~3% of procedures.Reference: Harrison&;s Principles of Internal Medicine; 19th edition; Chapter 320e; Lung Transplantation