Star A has a mass 20 times that of the Sun, while star B is a low-mass star. Based on this information, which of the following conclusions is most likely true? A. Star A will enter the main sequence as a red giant, whereas star B will enter the main sequence as a black dwarf.

B. Star A will enter the main sequence as a supergiant, whereas star B will enter the main sequence as a red giant.

C. When star A burns through its fuel, it will become a white dwarf; when star burns through its fuel, it will explode in a supernova.

D. When star burns through its fuel, it will become a white dwarf; when star burns through its fuel, it will explode in a supernova.