Task: Question Answering
Input (English): Question: In the regulation of glycogen metabolism by adrenaline: 
 Options:  <1> Adenylate cyclase is inhibited. <2> Protein kinase A is inhibited through cAMP. <3> Glycogen synthetase is inhibited by phosphorylation. <4> Glycogen phosphorylase is inhibited by phosphorylation. <5> The main enzyme that carries it out is protein kinase C.
Output (English): 3