You are designing a Windows Phone 7 application. The application will use toast notifications to alert the user to critical information. You need to modify the attributes of the toast notification to ensure that the user is informed of the critical nature of the information. What should you recommend? (Each correct answer presents part of the solution. Choose all that apply.)
A.
Set the title to Critical.
B.
Set the background color to red.
C.
Set the subtitle to Attention required.
D.
Change the icon to an exclamation point.
E.
Change the display duration to display the notification until it is tapped.