Task: Question Answering
Input (English): Question: Thermolabile (LT) and thermostable (ST) enterotoxins are responsible for diarrhea caused by some strains of: 
 Options:  <1> Salmonella enterica <2> Vibrio cholerae <3> Campylobacter jejuni. <4> Yersinia enterocolitica. <5> Escherichia coli
Output (English): 5