Design an inventory class that stores the following members: serialNum : An integer that holds a part's serial number. manufactDate : A member that holds the date the part was manufactured. lotNum : An integer that holds the part's lot number. The class should have appropriate member functions for storing data into, and retriev- ing data from, these members. Next, design a stack class that can hold objects of the class described above. Last, design a program that uses the stack class described above. The program should have a loop that asks the user if he or she wishes to add a part to inventory, or take a part from inventory. The loop should repeat until the user is finished. If the user wishes to add a part to inventory, the program should ask for the serial number, date of manufacture, and lot number. The data should be stored in an inven- tory object, and pushed onto the stack. If the user wishes to take a part from inventory, the program should pop the top-most part from the stack and display the contents of its member variables. When the user finishes the program, it should display the contents of the member val- ues of all the objects that remain on the stack.