The correct answer is: b) Landslides.
Landslides are the most common natural hazard in Meghalaya, accounting for over 90% of all natural disasters in the state. The state is particularly vulnerable to landslides due to its geology, which is characterized by steep slopes and unstable soil. Landslides are also exacerbated by human activities such as deforestation and mining.
Floods are also a major natural hazard in Meghalaya, but they are less common than landslides. Floods are caused by heavy rains, which can cause rivers to overflow their banks. Floods can damage homes, infrastructure, and crops, and can also lead to loss of life.
Earthquakes are less common than landslides and floods in Meghalaya, but they can still cause significant damage. Earthquakes are caused by the movement of tectonic plates, and can cause buildings to collapse and roads to crack.
Cyclones are the least common natural hazard in Meghalaya, but they can be the most destructive. Cyclones are caused by tropical storms, and can cause high winds and heavy rains. Cyclones can damage homes, infrastructure, and crops, and can also lead to loss of life.
In conclusion, landslides are the most common natural hazard in Meghalaya, and pose the highest risk to communities in the state.