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′