Yardangs are best described as
long narrow ridges of sand lying parallel to the direction of the prevailing winds
steep-side vertical bands of alternate hard and soft rocks aligned in the dircetion of the prevailing winds
flat, table-like masses with very resistant horizontal top layers and very steep sides
tabular, horizontal strata of alternate hard and soft rocks sculptured into a ridge and furrow landscape by wind
hills of sand formed by the accumulation of sand and shaped by the movement of winds
Correct answer is B
No explanation has been provided for this answer.