Arrange the Following Bonds in Decreasing Order of Ionic Character

Multiple Choice

Arrange the following bonds in decreasing order of ionic character, putting the most ionic first. $$\begin{array} { c c c c } \text { C-C } & \text { C-N } & \text { C-O } & \text { Na-O } \\\text { I } & \text { II } & \text { III } & \text { IV }\end{array}$$

A) I > II > III > IV
B) IV > II > I > III
C) IV > III > II > I
D) IV > II > III > I