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
Pseudo koebener's phenomeneon is/are seen in – 
a. Warts
b. Molluscum contagiosum
c. Lichen planus
d. Psoriasis 
Select and explain. 
A. ab, B. bc, C. cd, D. ad
A: ab
Answer: A: ab 
Explanation: Pseudo-koebner's phenomenon is seen in plane wart, molluscum contagiosum and eczematous lesions.