How Would You Expect the Molecule 1,10-Phenanthroline (Shown Below)to Function

Multiple Choice

How would you expect the molecule 1,10-phenanthroline (shown below) to function as a ligand?

A) It would be expected to be a monodentate ligand.
B) It would be expected to be a bidentate ligand.
C) It would be expected to be a tridentate ligand.
D) It would be expected to be a tetradentate ligand.
E) It would not be expected to function as a ligand.