Reaction of ammonia with diborane gives an ionic product $$\text{B}_2\text{H}_6 \cdot 2\text{NH}_3$$. The hybridization of boron in the cation and anion of this product are respectively

A

$$sp^3$$ in both

B

$$sp^3$$ and $$sp^2$$

C

$$sp^2$$ and $$sp^3$$

D

$$sp^2$$ in both