The definition of V1, at least one part of it, is that you can continue the take off at V1 with one engine inoperative.
However if you have not reached Vmcg, you will not have aerodynamic control when you loose an engine at Vef.
Per definition of Vmcg it must be Lower or equal to V1, hence V1 can not be lower than Vmcg.
So B can not be correct. You would have to lower Vmcg, I would assume this could be done by using reduced thrust setting on take off, which will give you a smaller yawing moment if you lost an engine during take off if not you would have to increase Vmcg if possible, or reduce the TOM, if TOM is reduced to the Vmcg limited TOM.
By the way your assumption of A can't be correct either, remember V1 speed, you can take off within the TODA or stop within the ASDA/ASDR - so V1 will be the highest speed you can do either. It will give you the best of both worlds.
If your V1 is lower than Vmcg, you will end up outside the runway in a big ball of fire, as you try to take off without any directional control!
Last edited by truckflyer; 4th June 2012 at 14:28.