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.
Answer: DVDs; Computer animated film
Explanation:
You included no options but something along the lines of the above should be the answer based on your options.
The 90's saw the invention of the DVD which were able to hold more and higher quality films thereby changing home movie viewing.
Pixar then led the way with the development of Toy Story which was the first feature to be produced by computer animation.
