This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'Some cells release messengers locally and possess cell surface receptors for the same messengers, thus enabling those cells to respond to their own secreted products. This has been implicated in the growth of ceain cancers. The impoant example for this among the following is: \nSelect and explain. \nA. Colorectal cancer, B. Pancreatic malignancy, C. Lymphoma, D. Gastric maltoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Some cells release messengers locally and possess cell surface receptors for the same messengers, thus enabling those cells to respond to their own secreted products. This mode of transmission is known as autocine signalling. This has been implicated in the growth of ceain cancers. Best example for this is colorectal carcinoma. Ref: Sleisenger and Fordtrans, Edition-9, Page-5.', 'role': 'assistant'}]