The "Dentation " of a Ligand Is Defined by _

The "dentation " of a ligand is defined by _ _.

A) how many "dents" or "deceptions" there are in the coordination sphere of a complex species it forms
B) how many electron donor atoms it utilizes to form coordinate bonds to the central metal ion
C) how many metal ions it can sequester from solution
D) the total number of lone pairs of electrons it possesses
E) none of the above