Efron, while intoxicated, enters into a contract for the sale of his business, Freight Dispatch, to Hannah for less than its market value. This contract is enforceable if$,$ at the time,

a$.$ Efron understood the legal consequences.

b$.$ Efron$$s intoxication was purely voluntary.

c$.$ Hannah fraudulently induced Efron to become intoxicated.

d$.$ Hannah was also intoxicated.