The answer is: Serious and forceful.
Tone: Is an attitude of a writer toward a subject or an audience. Tone is generally conveyed through the choice of words, or the viewpoint of a writer on a particular subject. In this case Lake´s words give the impression he is being serious and forceful.
Why did you put it under English?
That's true!
An interjection is like "Wow!", etc. It does not need to be accompanied by words.
Elizabeth Freeman which also known as Mum Bett was a slave of Western Massachusetts. She was abused and mistreated by her masters. The illustration highlighted that no matter what our races, colors, and physical appearance are; we also have the right to live freely in one’s country by being not mistreated and oppressed. Mum Bett showed bravery and determination to fight for her freedom and rights, the rights to be treated well despite the positions she had. She even took legal actions and wins for it to obtain the freedom and flee from slavery.
