If feel that it were to be other youtube's and like his mom because he mostly talks about his mom in his videos, and i also think he just wanted to follow his dreams and listen to his heart, which later became a great influence because he just came out with a book, and has a tour, and is very popular on youtube now.
In an essay written in a formal style, the kind of tone that the writing should have is: Objective.
An objective tone is a tone where the writer states the facts of a matter. He takes no sides but simply states matters as they are. When writing a formal essay, it important to be objective.
This will require that the facts of the matter are presented and backed by evidence. So, option C is right.
Learn more about formal essays here:
brainly.com/question/3269510