For the symbol, m”n=n^2−m for all values of m and n. What is the value of 5”3? Options
A) 5  B) 3  C) 2  D) 4  E) 0
5”3= 9 - 5= 
<gadget id="calculator">9 - 5</gadget>
<output>4</output>
4   Answer: 4
<result>D</result>
For the symbol, m”n=n^2−m for all values of m and n. What is the value of 5”3?