What statement about the energy of a phase change is true

Hi my dear friend,

Which statement about the energy of a phase change is true? A.Melting is an endothermic change, because ice releases energy to its surroundings as it melts. ... C.Melting is an exothermic change, because ice absorbs energy from its surroundings as it melts.

~Thank you

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)