Final answer:
While the exact percentage of the labor force in the territorial north employed in the tertiary sector in 2019 is not given, we can infer that it might be lower than the approximately 80 percent seen in highly developed economies, such as the United States. Given the options, 67 percent might be the closest approximation, but this should be considered a speculative answer without specific data.
Step-by-step explanation:
In order to determine the approximate percentage of the labor force in the territorial north that is employed in the tertiary sector in 2019, we can look at patterns from developed economies where the service industries dominate. For example, in the United States, about 80 percent of the workforce is employed in the tertiary sector, according to the U.S. Bureau of Labor Statistics. While specific figures for the territorial north in 2019 are not provided, we can infer that it would likely be a lower percentage than that of the United States, given that the U.S. is a highly developed economy with a high proportion of its force in the tertiary sector.
However, since we do not have a specific percentage for the territorial north, we cannot provide an exact answer. Among the options given: 2 percent, 22 percent, 67 percent, and 85 percent, one could argue that since most developed economies have a high percentage of tertiary sector employment, the closest approximation without the exact data would likely be around 67 percent, as 2 percent seems too low for any developed region, 22 percent could still be characteristic of a developing economy transitioning towards services, and 85 percent would be unusually high and exceed even the total for the United States. Therefore, one could tentatively choose 67 percent as the closest approximation, but it should be noted that this is a speculative answer in the absence of specific data.