Task: Question Answering
Input (English): Question: The bile produced by the liver is stored in the gallbladder from where it is secreted into the duodenum when the muscles involved receive this order in the form of hormonal and nervous signals mediated by: 
 Options:  <1> Colecitocinin and beta-adrenergic sympathetic activation. <2> Pancreozimine and beta-adrenergic sympathetic activation. <3> Secretin and parasympathetic activation. <4> Cholecystokinin and parasympathetic activation. <5> Secretin and alphaadrenergic sympathetic activation.
Output (English): 4