Chris wrote the following characteristics of two landforms. Landform A: Has underground waterways Landform B: Is a flat low lying piece of land next to the ocean Which statement is most likely correct? Landform A is a wetland and Landform B is a ridge. Landform A is a coastline and Landform B is a mountain. Landform A is a karst landform and Landform B is a coastline. Landform A is a mountain and Landform B is a karst landform.