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: Pathology
Infectious mononucleosis has: 
Select and explain. 
A. Multiple draining sinuses, B. Ulcers which bruise easily, C. Palatal perforation, D. Alveolar bone loss
B: Ulcers which bruise easily
Answer: B: Ulcers which bruise easily 
Explanation: None