Which of the following was a common practice in the Packingtown factories?

This question is incomplete; here´s the complete question.  

Read "The Jungle" (1906), by Upton Sinclair.

Which of the following was a common practice in the Packingtown factories?

A. making Sausages with pickles in them

B . combining spoiled meat with other meat and then selling  it

C. eating arw leftover meat after a day's work

D. White Coisin  elving all of the spoiled meat to Jonas

B . combining spoiled meat with other meat and then selling  it

Explanation:

Sinclair´s novel describes how spoiled meat was mixed with other meat, to disguise the rotten smell and appearance.

Because of this denounce of the corrupted practices in the Chicago meat industry, his muckraking novel became well-known and the public outrage forced the U.S. Pure Food and Drug Act to be passed to improve the conditions of the American slaughterhouses.

the third answer

explanation:

because