43. Which of the following description about exocrine pancreatic carcinoma is Wrong
(A) The spindle tumor cells of undifferentiated carcinoma of pancreas are positivefor cytokeratin, but always negative for vimentin
(B) the average size of tumors at the pancreatic head region is usually smaller thantail region
(C) Acinar cell carcinoma of pancreas has better survival in pediatric patients thanadult patients
(D) The osteoclast-like giant cells in the undifferentiated carcinoma with osteoclastlike giant cells (UC-OGC) of pancreas is considered as benign in nature