Answer:
B. Artists dedicated to exposing rotten parts of America
Explanation:
The Muckrakers were a group of people who rose during the progressive Era. Their main purpose is to expose the corrupt actions that carried out by government officials during that time.
Most of the time, Public use the word 'Muckrakers' are used to describe the journalists who publish the story about corruption to the public.
But, those journalists weren't doing their job alone. Sometimes, artists also create exposé on corrupt political through their artwork. Thomas Nast is one of them. He's known for his caricatures that contain mockery of corrupt politicians such as Marcy Tweed.
Social discord, political instability and lack of compromise, economic collapse.
