Why does Kant assert that the Good Will is the only unconditional good?

A$.$ It can never be our moral duty to do what is wrong, and to have the Go

B$.$ Other goods $($e$.$g$.,$ money$)$ can be put to evil purposes, but not the Goo

C$.$ To have a good will means one desires to do good toward others for th wealth or honor.

D$.$ Having it is the only way to true happiness.

E$.$ Their prices are low, fair, and they accept donations.