44. Which of the following statements about the complex ion Co(en)2Cl2+ (en = ethylenediamine, NH2CH2CH2NH2)is true? (A) the geometric isomers of the complex ion have identical chemical properties (B) the complex ion exhibits two geometric isomers (cis and trans) and two optical isomers (C) because en is a strong field ligand (large A), the complex ion is paramagnetic (D) the complex ion exhibits cis and trans geometric isomers, but no optical isomers (E) the complex ion contains Co(l)