The correct answer is: B. lines per sheet.
Dot-matrix printers print text and images by striking an inked ribbon against paper with a series of pins. The number of pins in the print head determines the resolution of the printer, and the number of lines that can be printed per sheet is a measure of the printer’s speed.
LaserJet printers, on the other hand, use a laser to create an image on a drum, which is then transferred to paper using a toner cartridge. The speed of a LaserJet printer is measured in pages per minute (ppm).
A. Lines per inch (lpi) is a measure of the resolution of a printer. It refers to the number of lines that can be printed per inch on a page.
C. Characters per inch (cpi) is a measure of the print density of a printer. It refers to the number of characters that can be printed per inch on a line.
D. Characters per second (cps) is a measure of the speed of a printer. It refers to the number of characters that can be printed per second.
E. None of the above is not a correct answer.