Which of the following statements about the sun's structure is true?
a) the sun has a solid surface
b) the sun had an interior and an atmosphere
c) the suns interior is similar to earths; it has a core , mantle , and crust
d) the suns outermost layer is called the radiation zone

Here is your

The answer is option C "The sun's interior is similar to the Earth's; it has a core, mantle, and crust." Both Earth and the sun has a similar interior including a core, and the mantle but has a hotter surface.

Hope this helps!

~Nonportrit

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

the answer to this question is 3.