The multiple chambers of a cow’s stomach exist to process nutrition from high-fiber plant matter. This process is only necessary because this plant matter is difficult to digest. Therefore, paleontologists’ discovery that the three-toed dinosaur Rumindolus possessed similar multi-chambered stomachs evidences the theory that Rumindolus fed on similarly difficult-to-digest vegetation.
In the passage, the author develops the argument by
【选项】
emphasizing the difficulty of digesting certain types of vegetation
选项是否正确？