The red evolutionary track illustrated in the figure above (similar to fig 19.6 in your textbook) ,that goes from point 4 to 5 to 6 to 7 shows:
A) a star nearing the end of its life and becoming a red giant.
B) a star nearing the end of its life and becoming a white dwarf.
C) a protostar forming into a main sequence star.
D) the changes that happen to a star during its red giant phase.
E) the locations on the H-R diagram for a small cluster of stars.
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