If a DNA molecule containing the base sequence 5′ TACTAG 3′ unzipped during replication, and replication that occurred in the direction away from the replication fork (to right) proceeded in three-base sequences, what would be the FIRST three-base sequence to be formed?

A. 5′ ATG 3′

B. 3′ ATC 5′

C. 5′ TAG 3′

D. 3′ TAG 5′

E. 5′ TAC 3′