This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
Clinical features of Botulism are all EXCEPT: 
Select and explain. 
A. Diarrhoea, B. Constipation, C. Ocular nerve paralysis, D. Blurring of vision
A: Diarrhoea
Answer: A: Diarrhoea 
Explanation: (Diarrhoea): Ref: 843-H, (211- Park 20th)BOTULISM - Clostridium botulinum (Incubation period 12-36 hours)Clinical symptoms* Cranial nerve involvement - diplopia, dysarthria, dysphonia or dysphagia weakness is asymmetric and progresses* Dizziness, blurred vision, dry mouth sore throat* Alert and oriented, may be drowsy, agitated and anxious.* Nausea vomiting and abdominal pain* Ptosis, papillary reflexes may be depressed, and fixed or dilated pupils are noted in half the patients* Paralytic ileus, severe constipation and urinary retension are common* Typically they have no feverInfant-Botulism: identification of contaminated honey as one source of spores has led to the recommendation that honey not be fed to children < 12 months of age.