(Practice) Rewrite the following if-else chain by using a switch statement:Program:if (let...

(Practice) Rewrite the following if-else chain by using a switch statement:

Program:

if (letterGrade == 'A')cout << “The numerical grade is between 90 and 100\n”;else if (letterGrade == 'B')cout << “The numerical grade is between 80 and 89.9\n”;else if (letterGrade == 'C')cout << “The numerical grade is between 70 and 79.9\n”;else if (letterGrade == 'D')cout << “How are you going to explain this one?\n”;else{cout << “Of course I had nothing to do with my grade.\n”;cout << “It must have been the professor’s fault.\n”;}