Final answer:
The most common type of tumor among the listed options is the lung tumor, which has both a high incidence and is a leading cause of cancer deaths worldwide.
Step-by-step explanation:
Among the options provided, the most common type of tumor is the lung tumor. The prevalence of lung cancer is significant, as it represents about 13% of all cancers, according to the given data. Not only is lung cancer one of the most commonly diagnosed cancers, but it is also a leading cause of cancer death worldwide, accounting for 27% to 31% of all cancer deaths. While brain tumors, liver tumors, and intraspinal tumors do occur, they are not as common as lung tumors. Additional common cancers include prostate cancer in males and breast cancer in females; both represent roughly one third of all cancers in their respective groups. Moreover, certain cancers such as pancreatic and breast cancer are known to metastasize to organs like the liver and lungs.