This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blistering disorders, Subject name: Dental
Which of the following is a condition affecting the epidermis of the skin in which blisters do not form? 
Select and explain. 
A. Adenocarcinoma, B. Bullous pemphigoid, C. Carcinoma, D. First-degree burn
D: First-degree burn
Answer: D: First-degree burn 
Explanation: First-degree burns damage the upper layers of the epidermis only, and blisters do not form in the skin.