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: 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: Ans. is 'b' i.e., Posterior cervical lymphadenopathy Sleeping sickness -Fever - Loss of nocturnal sleep - Headache - Feeling of oppression - Pruritis and maculopapular rashes - Weight loss - Ahralgia - Hepatosplenonegaly Lymphadenopathy, paicularly of the posterior triangle of the neck