Under the Bankruptcy Act $$ s exemption provisions:

?a $.$ ?federal exemptions defeat state exemptions in case of a clash between them.

?b $.$ ?the full value of one $$ s motor vehicle is exempt.

?c $.$ ?state exemption laws that exceed the federal limits $($ i $.$ e $.,$ ?that are too generous $)$ ?are void.

?d $.$ ?the debtor must choose either the state or the federal exemption scheme.