Rank these ionic compounds in order of increasing PE$.$

$KBr,MgS,$NaCl,$A{l}_2{O}_3$

lowest PE $A{l}_2{O}_3$ highest PEKBr highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PEA{l}_2{O}_3$ highest $PE$

lowest $PEKBr$ highest $PE$

lowest $PEA{l}_2{O}_3$ highest PENaCl highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PE$

lowest $PEKBr$ highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PEA{l}_2{O}_3$ highest $PE$

lowest $PE$ NaCl highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PE$

lowest $PEKBr$ highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PEA{l}_2{O}_3$ highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PE$

lowest $PE$ NaCl highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PE$

lowest $PEKBr$ highest $PE$

lowest $PEA{l}_2{O}_3$ highest $PE$