Task: Question Answering
Input (English): Question: Glycogenin: 
 Options:  <1> It catalyzes the conversion of starch into glycogen. <2> It is the enzyme responsible for the formation of branches in glycogen. <3> It is the gene that codes for glycogen synthase. <4> It is the primer on which new chains of glycogen start. <5> Regulates glycogen synthesis.
Output (English): 4