this is c++ 11. What is an output after the following switch statement executed? int years; double primeRate; double interestRate; years = 15; primeRate = 4.5; switch (years) { case 7: interestRate = primeRate + 0.5; cout << "Interest rate is "<< interestRate << " for "<< years << " years"; break; case 15: interestRate = primeRate + 1.0; cout << "Interest rate is "<< interestRate << " for "<< years << " years"; break; case 30: interestRate = primeRate + 1.5; cout << "Interest rate is "<< interestRate << " for "<< years <<" years"; break; default: cout << "Wrong number of years"; }