The complex that shows maximum number of isomers, where gly denotes glycine and $$\text{PEt}_3$$ denotes triethylphosphine, is

A

$$[\text{Pt(ox)(NH}_3)_2]$$

B

$$[\text{Pd(PEt}_3)_2\text{BrCl}]$$

C

$$[\text{Pd(gly)(ox)}]$$

D

$$[\text{Pt(NH}_3)(\text{NO}_2)(\text{PEt}_3)_2]^+$$