Which tanker discharge pattern would be the safest and most efficient?

A
Empty the forward tanks and start working aft, emptying each tank in sequence
B
Start discharging with most of the discharge coming from forward, but include some from midships and after tanks
C
Start pumping from forward, midships, and aft with the discharge distributed equally among the tanks
D
Start pumping from midships and then work forward and aft simultaneously as the midships tank is emptied
E