You perform a clean installation of Microsoft Windows Vista on the first partition. Then, you install Microsoft Windows XP Professional on the second partition of the same machine.<br /> You are able to log on to Windows XP Professional but do not have the option to boot to Windows Vista.<br /> You need to be able to dual boot the computer.<br /> What should you do?()<br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/2018073114160893334.jpg?sign=a65d6d7479f5390f698df1825f7d13ac&t=62d1eb93" /><br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/2018073114161236317.jpg?sign=e75a8bcbb5f271921656a060bfc0f6e4&t=62d1eb93" />
A、A
B、B
C、C
D、D