17. Which of the following statements is TRUE regarding ways to make screens more attractive? I. Icons are used in graphical screens to run programs II. Utilize different combination of colours III. Provide many shortcut and hyperlinks IV. Use different types of fonts A. I, II, and III B. II, III, and IV C. I, II, and IV D. I, III, and IV 18. Which of the items can be found in a physical data flow diagram? 1. Processes for adding, deleting, changing, and updating record II. Processes of general system input and outputs III. Processes to produce every unique system output IV. Processes that show validation to ensure accurate data input A. I, II and III B. I, III and IV C. II, III and IV D. I, II and IV 19. What is the purpose of using menus in a user interface? A. Menus are used to eliminate the users' non-interest options of menus. B. Menus provide the users with a list of the interest of elements. C. Menus are used to organize the users' works and to find the desired functions more easily. D. Menus provide the users to reach through other menus without consideration of functionality 20. X is use when not every condition is relevant to every action. Based on the above statement, what is X? A. Decision Tree B. Decision Table C. Structured Tree D. Structured English