Answer:
The correct answer is D)
His socialist politics.
Explanation:
Upton Sinclair's book The Jungle was written in order to expose the horrible working conditions faced by American citizens due to the capitalist system in place. Part of this book was originally written for a newspaper called "Appeal to Reason", which at this time was a socialist newspaper. Ultimately, Sinclair was appealing to the working class of America to try to persuade them that the capitalist system being used by the US was not working.
The aspect of Upton Sinclair’s life which best explains his reasons for writing The Jungle is:
According to the given question, we are asked to state the aspect of Upton Sinclair’s life which best explains his reasons for writing The Jungle.
As a result of this, we can see that Upton Sinclair's book The Jungle showed his personal views about socialist politics when he showed the poor living and working conditions which the American citizens had to endure as a result of capitalism.
Therefore, the correct answer is option D
Read more about socialist politics here:
https://brainly.com/question/937448
