You are on a Mariner class cargo vessel. Your drafts are: FWD 26'-06", AFT 28'-02". You wish to increase the calculated GM of 2.7' to 2.9'. What tanks should you ballast? (Use the white pages in the Stability Data Reference Book.)

A
Tanks: DB1
B
Tanks: DB1, DT1
C
Tanks: DB2
D
Tanks: DB1, DT1ft, DT6
E