Answer in C++

Implement a class named Organization which contains a collection of employees and the following three methods (a) Employee& getEmployee(const sring& first, const string& last) Return the employee with the given first name and last name. (b) Employee& getEmployee (const sring& ssn) Return the employee with the given social security number (c) Employee& highestSalary) Return the employee with the highest salary The Employee class contains the following member variables class Employee f public: string firstName; string lastName; string ssn; double salary; Employee (string &first, string &last, string & ss, double sa): firstName (first), lastName (last), ssn(ss), salary(sa) Co It's assumed that no two people have the same name and only one person has the highest salary