Definition: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: The reaction of 3-methylcyclohex-2-enone with lithium dibutyl caprate and subsequent addition of chlorotrimethylsilane gives:
Options: <1> [(3-Butyl-3-methylcyclohex-1-en-1-yl) oxy] trimethylsilane. <2> [(1-Butyl-3-methylcyclohex-2-en-1-yl) oxy] trimethylsilane. <3> Nothing. <4> 3-Butyl-3-methyl-2- (trimethylsilyl) cyclohexanone. <5> [(6-Butoxy-3-methylcyclohex-1-en-1-yl) oxy] trimethylsilane.
Output:
1