WHAT AM I DOING WRONG HERE???Code:/* This program reads a test score, calculates the letter grade for the score, and prints the grade. */ #include <iostream> using namespace std; char studentScore (int score); int main () { cout << "Enter the test score (0-100): "; int score; cin >> score; char grade = studentScore (grade); cout << "The grade is: " << grade << endl; cout << "\n\n\n"; system("pause"); return 0; } /* ===================== studentScore ===================== This function calculates the letter grade for a score. Pre the parameter score Post Returns the grade */ char studentScore (int score) { int temp = score / 100; char grade; switch (temp) { case 100 : grade = 'A Plus!'; break; case 90 : grade = 'A'; break; case 80 : grade = 'B'; break; case 70 : grade = 'C'; break; case 60 : grade = 'D'; break; default : grade = 'F'; } // switch return grade; }