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: Skin
All of the following are true about solar uicaria, EXCEPT: 
Select and explain. 
A. Common in females between age group above 40 yrs, B. Lesions subsides spontaneously on avoiding exposure within 24 hours, C. Some cases may develop severe uicaria/bronchospasm, D. Almost all cases are idiopathic
A: Common in females between age group above 40 yrs
Answer: A: Common in females between age group above 40 yrs 
Explanation: Solar uicaria is commonly found in women under the age of 30 years. Solar uicaria is an idiopathic disorder induced by ultraviolet light especially UVB. It is characterized by whealing within 5 -10 minutes of exposure to sunlight . Patients also complaints of irritating burning sensation of skin, followed by erythema and whealing. Rarely, they may also experience headache, bronchospasm and synchopal episodes.