A 68-year-old woman is diagnosed with a posteriorabdominal wall tumor that has invaded the superiormesenteric plexus. Which structure will most likely be affected？

A 68-year-old woman is diagnosed with a posteriorabdominal wall tumor that has invaded the superiormesenteric plexus. Which structure will most likely be affected？
A.Ascending colon
B.Rectum
C.Stomach
D.Descending colon
E.Kidney
正确答案：Ascending colon