Briefly describe the simplest heat treatment procedure that would be used in converting a 0.76 wt% C steel from one microstructure to the other, as follows: (a) Martensite to spheroidite, (b) Spheroidite to martensite, (c) Bainite to pearlite, (d) Pearlite to bainite, and (e) Spheroidite to pearlite.