<span>This is a story of a young couple which has economical problems so they started to sell their products in the river (Parana river). it was very difficult because many people were doing the same. One they, the husband was stung by a ray in the water so she had to row along in order to save her husband. </span>
The answer b because be is sand and sand forms by erosion, therefor B is the answer<span />
