In the Maintenance phase of SDLC A. an information system is systematically repaired and improved. B. an information system is monitored to see if there are elements which need to be changed. C. new and improved elements of an information system are installed. D. both A an B are done.\

Write a program that reads a set of floating-point values. ask the user to enter the values, then print • the average of the values. • the smallest of the values. • the largest of the values. • the range, that is the difference between the smallest and largest. of course, you may only prompt for the values once.