When planning a memory upgrade, you discover that Windows 8 reports 4 GB of memory installed. In BIOS/UEFI, you see that two of four slots are populated. You install two 2-GB DIMMs in the two empty DIMM slots. When you boot the system, Windows 8 still reports 4 GB of memory. Order the four steps you should take to troubleshoot the problem of missing memory. a. Open the case and verify that the DIMM modules are securely seated. b. Go into BIOS/UEFI and verify that it recognized 8 GB of installed memory. c. Open the System Information window to verify the edition or version of Windows 8 installed. d. Inspect the DIMMs you installed to verify that they match the existing DIMMs and those the motherboard can support