Which of the Following Activities Does E

Multiple Choice

Which of the following activities does E.coli DNA polymerase III contain?
(I) 5'→3' polymerase
(II) 5'→3' exonuclease
(III) 3'→5' exonuclease

A) I only
B) I,II
C) II only
D) I,III
E) I,II,III