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: Dental
Which of these statements is false for lesions of Erythema nodosum – 
Select and explain. 
A. They are considered as hypersensitivity reaction, B. The skin overlying the lesions is red, smooth and shiny, C. They are usually non tender, D. They can be associated with tuberculosis
C: They are usually non tender
Answer: C: They are usually non tender 
Explanation: Lesions of erythema nodosum are very tender, and overlying skin is red & shiny.
Erythema nodosum is presumed to be a hypersensitivity reaction, and may occur in association with several systemic diseases, infections (e.g. TB), drugs or it may be idiopathic