You use a computer that has Windows 7 Enterprise installed. You install Windows Vista Enterprise to a different partitio

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You use a computer that has Windows 7 Enterprise installed.
You install Windows Vista Enterprise to a different partition. You discover that the computer boots to Windows Vista by default.
You need to ensure that the computer boots to Windows 7 Enterprise by default.
What should you do?

A. On the General tab in the msconfig tool, select the Selective startup option button, and then select the Use original boot configuration check box.
B. On the Boot tab in the msconfig tool, highlight the Windows 7 boot entry and select the Make all boot settings permanent check box. Then, click Apply.
C. From an elevated command prompt in Windows Vista, run the bcdedit /default (default) comma
D. From an elevated command prompt in Windows 7 run the bcdedit /default (current) command