Final answer:
Large cell carcinoma is the type of lung cancer that is characterized by large polygonal cells that spread early in development.
Step-by-step explanation:
The type of lung cancer that is characterized by large polygonal cells that spread early in development is large cell carcinoma.
Lung cancer is classified based on the type of cell that resembles the tumor. Adenocarcinoma is a type of lung cancer that develops in the glandular cells of the lung. Squamous cell carcinoma occurs in squamous cells of the lung. Small cell lung cancer is characterized by small cells that grow rapidly and tend to spread early.
Out of the given options, large cell carcinoma best matches the description of lung cancer characterized by large polygonal cells that spread early in development.