AP and TS EAMCET Medical 2020 Model Paper 2

I : Increase in cationic size increases the ionic nature of bond
II : Decrease in anionic size increases the ionic nature of bond
III : Cations with pseudo inert gas configuration favour ionic bond formation
IV : Cation or anion or both ions, having more charges favour the formation of ionic bonds.
Correct Fazan's rules of the above are