HELP ME OUT PLEASE!

Reread the first paragraph: "It is easy to see that the sky is blue. Have you ever wondered why?

A lot of other people have, too. And it took a long time to figure it out!

What is the TONE of this paragraph?

A) Frustrated and bored

B) Lively and informative

C) Dull and uninteresting

D) Worried and urgent​