Answer:Mr. Hale says that there is blood on his head because he feels responsible for the deaths of the innocents who have been hanged prior to Act Four as well as for those folks scheduled to hang in the final act of the play.
Explanation: this is the correct answer
You can use gestures to emphasize key points. Volume and tone both include verbal so it isn't those, and then pace is how fast you move which usually doesn't affect key points.
Number 2 is the answer I think
To prevent more work later
To ensure a proper works cited
To prevent any accusations of plagiarism
To ensure that all sources are always accessible
