Where do all tropical cyclones form? a. in the tropics b. over the ocean c. in the easterly wind belt d. in the westerly wind belt

All tropical cyclones form over the ocean.

Option B

Explanation:

The tropical cyclones form above the ocean. To form a cyclone, warm, moist air rises above the ocean and as it rises, it creates an area of lower air pressure and air of high pressure area is also shifted to areas of low pressure area which when rises form clouds. This whole system of cloud and wind spins together fed by ocean's heat and as it spins faster and faster it results in a cyclone forming an eye in the center.