You install Microsoft Windows Vista on a new computer. The computer has the following hardware configuration： 2.4-GHz processor 2 GB of RAM 512-MB video adapter 250-GB hard disk. You are unable to view the following features of Windows Vista： Thumbnails Previews on folders Transparent glass. You need to be able to view the advanced visual features of Windows Vista. What should you do？（）
- APress the ALT key and the TAB key simultaneously.
- BPress the WINDOWS key and the TAB key simultaneously.
- CConfigure the system properties to optimize for applications.
- DConfigure the system properties to optimize for best appearance.