Read the sentence below and answer the question that follows. Korean farmers use levees to separate and irrigate their rice fields. The word underlined in the sentence above is best defined as __________. A. Flat areas that are cut into the side of hills and used to grow crops B. Rice terraces that usually are carved on the side of a mountain C. Ridges that surround and keep water in irrigated areas D. The spreading of something from one place to another Please select the best answer from the choices provided A B C D