A
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
Most stars in the Milky Way are like the Sun. The Sun will eventually become a red giant. After the red giant stage, what determines whether a star will become a white dwarf or a supernova?

### Choices:
A. the mass of the star
B. the diameter of the star
C. the brightness of the star
D. the type of gas in the star

### Answer:
