Given below is the represention of the extent of global diversites of vertebrates. What groups does the portions repesent ?
A. `{:(,A,B,C,D),(,"Birds","Reptiles","Fishes","Mammals"):}`
B. `{:(,A,B,C,D),(,"Mammals","Birds","Fishes","Amphibians"):}`
C. `{:(,A,B,C,D),(,"Fishes","Amphibians","Mammals","Birds"):}`
D. `{:(,A,B,C,D),(,"Fishes","Mammals","Birds","Amphibians"):}`
