Answer:
To arouse public sympathy for slaughterhouse workers.
Explanation:
This was the main purpose that Upton Sinclair had when writing The Jungle. Sinclair wanted to arouse public sympathy for slaughterhouse workers who were often abused. These workers worked long hours with very little pay. They were often immigrants who felt forced to tolerate bad working conditions. However, the effect the book had was that of shocking the population with the unsanitary descriptions of slaughterhouses.
