Question

this is a crop planted in order to keep the soil from eroding. blanket crop cover crop duvet crop comforter crop

Explanation:

A cover crop is specifically planted to prevent soil erosion (among other benefits like improving soil health). The other options ("blanket crop", "duvet crop", "comforter crop") are not standard agricultural terms for this purpose.

Answer:

B. cover crop (assuming the options are labeled as A. blanket crop, B. cover crop, C. duvet crop, D. comforter crop; if labels differ, adjust to the correct identifier with "cover crop")