Choose the pair in which the words are differently related from the rest.

The answer is D. Scrub: Polish.

In the other pairs, the first word is a less intense version of the second word. A flurry is a light snowfall, while a blizzard is a heavy snowfall. Moisten means to make something slightly wet, while drench means to soak something completely. Prick means to pierce something with a sharp object, while stab means to pierce something with a sharp object forcefully.

However, scrub and polish are not related in this way. Scrubbing is a vigorous cleaning action, while polishing is a gentler action that is used to make something shiny.