Why is Hauchecorne's surprise at his neighbors' reactions to his claims of innocence ironic?
a. Hauchecorne knows his reputation and should not expect to be trusted.
b. Hauchecorne knows that Malandain is just trying to get even with him.
c. Hauchecorne knows that Malandain witnessed him pick up the string.
d. Hauchecorne knows that the wallet has been found and will soon be turned in.