单项选择题
A technician is checking on a printer that is frequently jamming. The jams always consist ofmultiple papers becoming stuck. The paper in the printer was just reloaded this morning. Which of the following is the MOST likely reason for the jams?（）
A. The drum is old and needs to be replaced.
B. The fuser is not coming up to the proper temperature.
C. The paper tray rollers are too tight.
D. The paper is damp due to humidity.
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B. The jumpers on both drives are set to the cable select position.
C. The jumper on the first drive is set to master and the second is set to slave.
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