Which listing of geological periods is in the correct order, from oldest to most recent?
a) Precambrian, Paleozoic, Mesozoic, Cenozoic
b) Cenozoic, Mesozoic, Paleozoic, Precambrian
c) Paleozoic, Precambrian, Cenozoic, Mesozoic
d) Mesozoic, Cenozoic, Precambrian, Paleozoic