A.dividing the total longitudinal moment summations by displacement
B.dividing th etotal vertical moment summation by displacement
C.multiplying the MTC by the longituinal moments
D.subtracting LCF from LCB

A.filling a partially tank
B.using an on board crane to life a freely swinging heavy object
C.emptying a partially filled tank
D.transferring ballast from the forepeak to the after peak