You will be given a definition of a task first, then some input of the task.
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'.

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:
3