Because in those times, African Americans were rarely believed in court and he was afraid that even if he told to truth, he would be found guilty.
The last one is the correct answer.
It is "It's going to be a long wait," the nurse confided.
When someone is speaking, there needs to be quotation marks. Also, <em>It's</em> needs an apostrophe because that makes it stand for "It is"
So the last answer is the right one.