Steve adds a second 1-GB 240-pin DIMM to his PC, which should bring the total RAM in the system up to 2 GB. The PC has an Intel Core 2 Duo 3-GHz processor and three 240-pin DIMM slots on the motherboard. When he turns on the PC, however, only 1 GB of RAM shows up during the RAM count. Which of the following is most likely to be the problem? ​

A. Steve Failed to seat the RAM properlyB. Steve put DDR SDRAM in a DDR 2 slotC. The CPU cannot handle 2 GB of RAMD. The motherboard can use only one RAM slot at a time