Answer:C)Imaging drum
Explanation:Imaging drum is the most important component of the printer which helps in the printing of image on a paper with help of a toner. Drum is the device for producing clear prints on the paper, if the drum of the printer gets damaged or dirty ,the print-out from the printer will have streaks or non-clear print. This means the quality of the print-out depends on the condition of the drum.
Thus ,option(c)is the reason for streaks in the printout due to imaging drum probably getting worn out.
