Read a sentence from an argumentative essay. The Great Depression was a bad time for people, and they didn’t have a ton of money.

Which is the best example of how to revise the sentence to include formal language?

The Great Depression was bad because people were really poor and didn’t work.
The Great Depression was a difficult economic period because many didn’t have jobs.
The Great Depression was a difficult period of history, as the majority of citizens were without work.
The Great Depression was a hard time in US history because lots of people didn’t have enough money.