You are on a Mariner class cargo vessel. Your drafts are: FWD 22'-06", AFT 25'-06". You wish to increase the calculated GM of 4.8' to 5.9'. What tanks should you ballast? (Use the white pages in the Stability Data Reference Book.)

A
Tanks: DB3, DB4
B
Tanks: DB5, DT6
C
Tanks: DB2, DB5
D
Tanks: DB2, DB6, DB7
E