Fill in the blank. The author MAINLY explains the importance of Earth Day ____________.
A
by describing the context and consequences of the first Earth Day and how it spread worldwide
B
by focusing the article on the destruction of the Earth that was happening prior to Earth Day
C
by highlighting the success of the Environmental Protection Agency at stopping pollution
D
by explaining how hard Senator Gaylord Nelson and Dennis Hayes had to work to put on the first Earth Day
no link or i will report