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
A 65 year old chronic smoker presented with a central lung mass with distal bronchiectasis and recurrent pneumonia. A greyish white tumor was resected. Which of the following histopathological finding is most likely to be seen - 
Select and explain. 
A. Small cells with scant cytoplasm, ill defined cell borders and hyperchromatic nuclei with nuclear moulding, B. Derivatives of all three germ layers are seen, C. Tall columnar cells with cytoplasmic and intra alveolar mucin, D. Palisading or rosette - like arrangements of cells separated by abundant fibrovascular stroma
A: Small cells with scant cytoplasm, ill defined cell borders and hyperchromatic nuclei with nuclear moulding
Answer: A: Small cells with scant cytoplasm, ill defined cell borders and hyperchromatic nuclei with nuclear moulding 
Explanation: Palisading or rosette - like arrangements of cells separated by abundant fibrovascular stroma