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
A 22 year old woman developed small itchy wheals after physical exeion, walking in the sun, eating hot spicy food and when she was angry. The most likely diagnosis is: 
Select and explain. 
A. Chronic idiopathic utricaria, B. Heat uicaria, C. Solar uicaria, D. Cholinergic uicaria
D: Cholinergic uicaria
Answer: D: Cholinergic uicaria 
Explanation: D i.e. Cholinergic Uicaria