This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bronchiectasis, Subject name: Medicine
A 30-year-old woman presents with history of fever for 2 weeks with multiple episodes of haemoptysis. Bronchoscopy shows a polypoid mass covered with intact mucosa. Surgical resection was done and the histology slide is shown below. What is the diagnosis? 
Select and explain. 
A. Carcinoid tumour, B. Large cell cancer, C. Pulmonary hamaoma, D. Adenocarcinoma lung
A: Carcinoid tumour
Answer: A: Carcinoid tumour 
Explanation: Carcinoid tumor Aka Kulchitsky cell tumor Commonly present in bronchus Causes local damage, hemoptysis, diarrhea, fever Histology - polypoid cell with intact mucosa, basophilic nest of cells.