Which of the Following Is Among the Things Scientists Predict

Which of the following is among the things scientists predict for Sun's demise?

A) The burning of helium will produce a carbon ash core.
B) The Sun will expand until it extends past the present orbit of Venus.
C) The sun will emit more energy but appear to be cool.
D) At different points in its final years, the Sun will become a red giant and a white dwarf.
E) All of these are correct.