Which sentences in this excerpt from Arthur Conan Doyle's "The Contest" show Policles's lack of knowledge about the rules and restrictions of his society?

1. Thence he concentrated himself upon the stage, on which Metas, a well-known minstrel from Corinth and an old friend of Policles, was singing and playing without much encouragement from the audience.

2.To Policles it seemed that Metas was having less than his due, so he applauded loudly, but he was surprised to observe that the soldiers frowned at him, and that all his neighbours regarded him with some surprise.

3.When Metas of Corinth had made his bow and withdrawn to half-hearted and perfunctory applause, there appeared upon the stage, amid the wildest enthusiasm upon the part of the audience, a most extraordinary figure.

4.The blue-clad player struck several chords upon his lyre, and then burst suddenly out into the "Ode of Niobe."

5.Policles’ conscience would not permit him to be still. Standing upon his bench with waving hands and upraised voice, he protested with all the strength of his lungs against the mad judgment of the audience.

2.To Policles it seemed that Metas was having less than his due, so he applauded loudly, but he was surprised to observe that the soldiers frowned at him, and that all his neighbours regarded him with some surprise.

5. Policles’ conscience would not permit him to be still. Standing upon his bench with waving hands and upraised voice, he protested with all the strength of his lungs against the mad judgment of the audience.

Explanation:

Option number 2 shows that Policles was applauding too loud because he thought the audience was not applauding Metas the way he deserved. What Policles did not know is that for high society making noise is a very bad polite thing. This also serves to explain option 5 where it shows Policles on the bench, shaking hands, screaming and again being disapproved by society.