and no A.) spiral C-) scrum D) All of the above 12. All of the following are essential attribunes of god software except II. Answer the following questions. (1e poists each) 13. The text identified four fundamental activities common to all software processes. List and describe the focus of each of these activities 14. Briefly describe at least two major differences between the classic waterfall software process model and agile development methods such as extreme programming and scrum. 15. What is a Scrum sprint? 16. What is a software prototype and what benefits do they provide to the software development process