In the Northern Hemisphere, middle-latitude anticyclones rotate clockwise.
An anticyclone is a weather phenomena that is defined as a large-scale circulation of winds, clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere, around a central region of high atmospheric pressure. The effects of surface-based anticyclones are cooler and drier air as well as clearing skies.
Your question seems to be incomplete. However, it most probably refers to this: "Middle-latitude anticyclones in the northern hemisphere: ... (a) rotate clockwise, (b) are large low-pressure systems, (c) travel from east to west, (d) have cold fronts but not warm fronts." In that case, the correct option would be a.
Learn more about anticyclones here: https://brainly.com/question/15579611
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