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
All of the following statements about E1-Tor vibrios are true, Except - 
Select and explain. 
A. Humans are the only reservoir, B. Can survive in ice cold water for 2-4 weeks, C. Killed by boiling for 30 seconds, D. Enterotoxin can have direct effects on other tissues besides intestinal epithelial cells
D: Enterotoxin can have direct effects on other tissues besides intestinal epithelial cells
Answer: D: Enterotoxin can have direct effects on other tissues besides intestinal epithelial cells 
Explanation: None