Customers looking to utilize quad-core processors in a blade environment should use which of the following power saving options？（）

• A、IBM HS21 - Quad-core processor designed for 4-way servers
• B、IBM x3850 Server - Quad-core LV processors
• C、IBM LS41 - Quad-core processor designed for 4-way servers
• D、IBM HS21 - Quad-core LV processors