Which is stronger land building or erosion? write a paragraph answering this question

Land-building is stronger than erosion. Land building refers to breaking up the land and using it for different purposes. For instance, building a road or using a land for agricultural cultivation is a type of land building.
Land building usually breaks up the land and exposes the land to erosion. When a land is used for agricultural cultivation for instance, the farming operations which are carried out on the land make the land susceptible to erosion. Erosion can be caused by water or wind.
Generally, land-building opens up lands to erosion.

Ithink the correct answer is a