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
An 22 year old female complains of double vision and difficulty talking. On examination, there is symmetrical descending paralysis, Quadriparesis with areflexia, pupils are non reactive. Diagnosis is 
Select and explain. 
A. Tetanus, B. Strychnine, C. Diphtheria, D. Botulism
D: Botulism
Answer: D: Botulism 
Explanation: Flaccid paralysis (quadriparesis) with blurring of vision, areflexia and non-reactive pupils suggestive of botulism.