The correct answer is: A. flicker and slow update.
A raster CRT is a type of cathode ray tube (CRT) that uses a raster scan to display an image. This means that the image is drawn line by line, from top to bottom. This eliminates the flicker that is often seen on older CRTs, which used a non-interlaced scan.
A raster CRT also eliminates the slow update that is often seen on older CRTs. This is because the image is drawn line
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