Which of the Following Is True Regarding the Attractive Force

Multiple Choice

Which of the following is true regarding the attractive force that holds sodium chloride in the solid state?
I.It is electrostatic.
II.It is termed ionic bonding.
III.It depends on the distance between the sodium and chloride.
IV.It only operates between adjacent sodium and chloride ions.

A) I and II only
B) II and III only
C) I, II, and III only
D) II and IV only
E) I-IV are all true statements.