Pathology In which of the following forms of pulmonary carcinoma is the classic progression of metaplasia to dysplasia to carcinoma in situ observed A Small-cell carcinoma B Adenocarcinoma C Large-cell carcinoma D Squamous cell carcinoma 💡 Explanation In which of the following forms of pulmonary carcinoma is the classic progression of metaplasia to dysplasia to carcinoma in situ observed ✓ Correct Answer: D. Squamous cell carcinoma