As Astronomers Have Learned More About the Structure of the Sun

As astronomers have learned more about the structure of the Sun, they have found that it

A) has a small solid core inside
B) is made entirely of liquid, with a tiny bit of hot gas on the outside
C) is solid throughout, but with a large very hot atmosphere
D) is made entirely of hot gas
E) is made of billions of individual pieces of hot rock, all orbiting around each other in a whirling arrangement