A technician has just installed an upgraded graphics card. The computers power turns off before itfinishes booting. Which of the following is the cause of the problem? （）

• A、The monitor cannot display the increased resolution that is a feature of the new graphics card.
• B、The power supply does not provide enough wattage to power the new graphics card.
• C、The new graphics card is incompatible with the existing processor.
• D、The computer does not have enough RAM to support the new graphics card.