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: Ophthalmology
A soft contact lens users has corneal keratitis cause is 
Select and explain. 
A. Acanthamoeba-ulcer, B. Erosion of cornea, C. Pseudomonas infection, D. Herpes infection
C: Pseudomonas infection
Answer: C: Pseudomonas infection 
Explanation: C i.e. Pseudomonas infection