Task: Question Answering
Input (English): Question: What is the mechanism of action of octreotide ?: 
 Options:  <1> Serotonergic receptor 5-HT4 agonist. <2> Motilin receptor agonist. <3> Somatostatin receptor agonist. <4> Antagonist of the motilin receptor. <5> Somatostatin receptor antagonist.
Output (English): 3