This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Which of the following is the terminal group of lymph node foe colon ? 
Select and explain. 
A. Paracolic, B. Epicolic, C. Preaoic, D. Ileocolic
C: Preaoic
Answer: C: Preaoic 
Explanation: .Groups of Lymph Nodes Draining Colon * N1: Nodes immediately adjacent to bowel wall. * N2: Nodes along ileocolic/right colic/middle colic/ left colic/sigmoid aeries. * N3: Nodes near the origin of SMA and IMA. * Nodal spread in carcinoma colon is sequential from N1 - N2 - N3 ref:SRB&;S manual of surgery,ed 3,pg no 837