Task: Question Answering
Input (English): When trees are removed from an area in a tropical rainforest, the area experiences an increase in soil erosion. Which statement best explains why removing the trees can lead to soil erosion?  
 (A) Less bedrock will be available to make soil. (B) There will be fewer roots to hold the soil in place. (C) The number of soil-eating insects in the area will increase. (D) The amount of solar radiation reaching the ground will increase.
Output (English): B