The answer is c the discovery of oil
Answer:
A. that have qualities in common.
Explanation:
Decrease, it made the people question just how much they could trust their government after trying so hard to hide secrets from them.
Good luck :)
The President's name was Andrew Johnson! In order to have him impeached the Senate had to be two-thirds majority! The vote was 35-19 to impeach him they were only lacking 1 single vote!
I hope I helped! :)