This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Dermatitis, Subject name: Dental
Characteristic of chronic eczema is 
Select and explain. 
A. Erythema, B. Induration, C. Lichenification, D. Edema
C: Lichenification
Answer: C: Lichenification 
Explanation: In chronic eczematous conditions, lichenification (cutaneous hyperophy and accentuation of normal skin markings) may alter the characteristic appearance of eczema.Ref: Harrison&;s Principles of Internal Medicine; 19th edition; Chapter 71 Eczema, Psoriasis, Cutaneous Infections, Acne, and Other Common Skin Disorders; Page no: 344