This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
Winter bottoms sign in sleeping sickness refers to - 
Select and explain. 
A. Unilateral conjunctivitis, B. Posterior cervical lymphadenopathy, C. Narcolepsy, D. Transient erythema
B: Posterior cervical lymphadenopathy
Answer: B: Posterior cervical lymphadenopathy 
Explanation: Generalized or regional lymphadenopathy - Posterior cervical lymphadenopathy (Winterbottom sign) is characteristic of T brucei gambiense African trypanosomiasis