How does Chained Spirit Create Bent? (Patreon)

I was writing and I realized there was this glaring issue that was probably only glaring to me, but it's still fun to think about.

People recreated by Chained Spirit can use their Abilities. This implies that they have Bent. Where did it come from? I have come up with a handful of possible answers.

A) They are always summoned with Bent equal to the amount they had when they died (This means Calvin could theoretically have infinite Bent if he ate a girl.)

B) There is some kind of personal pool that the spell draws from that the caster has to recharge. (again, if Calvin eats a girl, he can use this pool as an extension of his own.)

C) There is a pool of bent shared between everyone who uses Chained spirit, like insurance. (Calvin uses a girl to commit insurance fraud)

D) Chained Spirit doesn't make Bent at all. Any actions or abilities are a direct result of the spell.