Which is the correct order of increasing geological time scale for a hypotehtical vertebrate evolution?
A. Cenozoic, Mesozoic, Paleozoic, Proterozoic
B. Cenozoic, Palaeozoic, Mesozoic, Proterozoic
C. Proterozoic, Cenozoic, Palaeozoic, Mesozoic
D. Proterozoic, Palaezoic,Mesozoic,Cenozoic