The Hertzsprung-Russell (H-R) diagram shows the main sequence and the evolutionary paths of two stars, Star A and Star B.
Which of the following statements correctly compares the main sequence lifetimes of the two stars and describes their ultimate remnants?
Star B spends a shorter time on the main sequence than Star A, and Star B's final remnant is supported by electron degeneracy pressure.
Star B spends a longer time on the main sequence than Star A, and Star A's final remnant is supported by neutron degeneracy pressure or becomes a black hole.
Star B spends a shorter time on the main sequence than Star A, and Star A's final remnant is supported by neutron degeneracy pressure or becomes a black hole.
Star B spends a longer time on the main sequence than Star A, and Star B's final remnant is supported by neutron degeneracy pressure.