Which of the Following Statements Is Incorrect

Which of the following statements is incorrect?

A) Electronegativities tend to be greater at the top of any group
B) Electronegativities increase from left to right across any row of the periodic table
C) You can estimate the polarity of a bond by calculating the difference between the electronegativity values for the two elements
D) The electronegativity difference is zero between elements with electrons in the same principal energy level
E) The more electronegative element toward which the bonding electrons are displaced acts as the "negative pole" in a polar bond