The best answer is B.
A cyclone is a storm or system of wind that rotates around a center of low atmospheric pressure. An anticyclone is a system of winds that rotates around a center of high atmospheric pressure.
Distinctive weather patterns tend to associated with both cyclones and anticyclones.
Cyclones (commonly known as lows) are generally indicators of rain , clouds and other forms of adverse weather. Anticyclones (commonly referred to as highs) are predictors of fair weather.
Winds in a cyclone blow counterclockwise in the northern hemisphere and clockwise in the southern hemisphere. Winds in an anticyclone blow just the opposite.
