Design a population class that stores a current population, annual number of births, and annual number of deaths for some geographic area. the class should allow these three values to be set in two ways: by passing arguments to a threeparameter constructor when a new population object is created or by calling the setpopulation, setbirths, and setdeaths class member functions. the class should also have getbirthrate and getdeathrate functions that compute and return the birth and death rates. your program should properly use pointer data types where appropriate. write a program that uses the population class and illustrates its capabilities.