Answer:

DIFFERENCE.

GOD BLESS YOU PO

Answer:

A = {D,I,F,E,R,N,C}

Step-by-step explanation:

Rearranging these words it makes the word DIFFERENCE . And rearranging these into a set in roaster form it makes A = {D,I,F,E,R,N,C} .

PS : Same elements are never repeated in sets .