Answer:
Beethoven's Violin Concerto in D Major, op. 61
Explanation:
The social problem that The Jungle by Upton Sinclair described was B.) THE LIVING AND WORKING CONDITIONS IN CHICAGO'S STOCKYARD.
Not only in the stockyard but also in the meat packing factories.
The story is about how a family intent on pursuing their American Dream was not able to do so because they became victims of corruption, wage slavery, and oppression by the capitalists in Packingtown.
It is exactly the same in the case of the opera’s orchestra and its conductor with one solitary difference: you see this machinery and its director and can watch them in action. There is only one great theater in the world, the Festspielhaus in Bayreuth, where the orchestra and conductor are completely invisible to the audience, though this arrangement has been imitated by a few smaller houses, notably the Prinzregenten Theatre in Munich. Wagner was the first to realize this idea, but not the only one of his time to conceive it. Verdi, in his letters, earnestly recommended having an invisible orchestra...
Explanation:
Same to you tidal uskc dock isk