Even if the answer is marginally C (Nyame has MAB at a base level), you can only have one set of Nyame. Is Trueflight gonna be the only WS you ever use?
B will be better. Generally for trueflight high end sets 1 WSD = a little over 4 MAB. Can also enjoy path B for so many WS.. but if you were a mage main who picked up RNG and already have path C it will perform well