{$mEDiAurl}
ACCorDing to thE proFEssor, whAt is onE importAnt rEsult oF thE rED giAnt phAsEA．thE CrEAtion oF A nEw plAnEt.
B．thE onsEt oF A supErnovA Explosion.
C．thE FormAtion oF DwArF stArs.
D．thE BEginning oF stAr DEgEnErAtion.