Question

Which is not important to say?

A) A solar eclipse happens when the moon passes between the sun and Earth.
B) Scientists hope to learn new things from solar eclipses.
C) The sun's corona is the outside layer of the sun's atmosphere.
D) There was a total solar eclipse on August 21, 2017.

Answer 1

C. Since its not relatively talking about eclipses but the sun in general

Answer 2

I would say that the answer here is C, since it really doesn't add any important info to the article.