{Easy} Look at the image above. According to the numbered lines, what's the correct order of layers? [Penn Foster]
A. (1) Corona (2) chromosphere (3) photosphere
B. (1) Photosphere (2) chromosphere (3) corona
C. (1) Chromosphere (2) corona (3) photosphere
D. (1) Photosphere (2) corona (3) chromosphere
