How does the coriolis effect contribute to formation of tropical cyclones ?

Earth rotates toward the east and this rotation causes fluids, such as air and currents, to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. Cyclones can form in areas of low pressure

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

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