Bob, a technician, is adding a secondary IDE hard drive to an older system. After installation and the first boot, the drive is not showing in Disk Management. Which of the following is the MOST likely cause of the issue?（）

• A、The new drive’s jumper is set for master.
• B、The new drive is connected to the secondary bus as a slave drive.
• C、Both drives’ jumpers are set for cable select.
• D、The old drive’s jumper is set for master and the new drive is set for slave.