The order of interatomic distances in $$B_{2}, B_2^-$$ and $$B_2^+$$ is.

A

$$B_{2} < B_2^+ < B_2^-$$

B

$$B_2^+ < B_{2} < B_2^-$$

C

$$B_2^- < B_{2} < B_2^+$$

D

$$B_{2} < B_2^- < B_2^+$$