$48.$ Which of these commands can be used to set the expiry date of Sabastien account to $31$st December $2023.$

a$).$ usermod $-$e $2023-12-31$ Sabastien

b$).$ None of the above

c$).$ usermod $-$e $31-12-2023$ Sabastien

d$).$ usermod $-$e $12-31-2023$ Sabastien