Consider the definition of the class employee as given below. answer the following questions: class employee //line 1 { //line 2 public: //line 3 employee(); //line 4 employee(string, int, double); //line 5 employee(int, double); //line 6 employee(string); //line 7 void setdata(string, int, double); //line 8 void print() const; //line 9 void updatesalary(double x); //line 10 int getnumofserviceyears() const; //line 11 double getsalary() const; //line 12 private: //line 13 string name; //line 14 int numofserviceyears; //line 15 double salary; //line 16 }; //line 17

a. write the definition of the function setdata so that the instance variables are set according to the parameters.
b. write the definition of the function print to output the values of the instance variables.
c. write the definition of the function updatesalary to update the value of the instance variable salary by adding the value of the parameter.
d. write the definition of the function getnumofserviceyears to return the value of the instance variable numofserviceyears.