You are on a Mariner class cargo vessel. Your drafts are: FWD 21'-04", AFT 23'-04". You wish to increase the calculated GM of 4.8' to 5.8'. What tanks should you ballast? (Use the white pages in the Stability Data Reference Book.)

A
Tanks: DB2, DB6
B
Tanks: DB6, DT7
C
Tanks: DB4, DB7
D
Tanks: DB2, DB5
E