How Does Deforestation by Fire or Human Activity Contribute to Mass

Multiple Choice

How does deforestation by fire or human activity contribute to mass wasting?

A) It allows the wind to blow across the slopes, imparting a stress that triggers landslides.
B) It kills tree roots that help hold the slopes in place, allowing mass movement.
C) It allows excess rainfall runoff to erode the landscape, triggering mass wasting.
D) It allows farming activity that exposes soil to erosion and mass wasting.