The tone of by any other name can be described as:
a. humorous
b. serious
c. exaggerated
d. passionate

d.passionate

By simply changing your tone in the poetry, you can give your audience a hint what attitude you have. The tone plays a very important part of the poetry because without the presence of tone, you will not be able to express your character, it would be hard for you to tell the audience that you are a sarcastic person without using your tone as a hint.