The hybridization and magnetic behaviour of cobalt ion in [Co(NH$$_3$$)$$_6$$]$$^{3+}$$ complex, respectively is

A

sp$$^3$$ d$$^2$$ and diamagnetic

B

d$$^2$$ sp$$^3$$ and paramagnetic

C

d$$^2$$ sp$$^3$$ and diamagnetic

D

sp$$^3$$ d$$^2$$ and paramagnetic