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: Radiology
Most common skin manifestation seen after 2 days of radiation therapy is? 
Select and explain. 
A. Erythema, B. Atopy, C. Hyperpigmentation, D. Dermatitis
A: Erythema
Answer: A: Erythema 
Explanation: A i.e. Erythema Most common early (acute) manifestation of local skin reaction is erythemaQ which is followed by desquamation