In Base-Excision Repair, the First Enzyme in the Sequence Is

In base-excision repair, the first enzyme in the sequence is ____ creating a(n) ____ site.

A) DNA polymerase III; ligase binding
B) DNA glycosylase; apurinic or apyrimidinic
C) DNA polymerase I; apurinic or apyrimidinic
D) DNA ligase; polymerase III binding
E) AP endonuclease; ligase binding