Final answer:
Canadian unemployment rates have fluctuated since 2010, with periods of both increase and decrease. In comparison, the U.S. unemployment rate has remained stable over the long term, despite significant changes in the workforce and population.
Step-by-step explanation:
Regarding unemployment rates in Canada since 2010, the most accurate statement would be that they have fluctuated, experiencing both rises and falls depending on various economic conditions and time periods. While the statement may be too broad to capture all the nuances of the unemployment situation in Canada, it is worth noting that generally, over the long term, the U.S. unemployment rate has remained at basically the same level. This stability in the U.S. can be linked to various factors, including the significant increase in the number of workers, particularly with women entering the workforce in large numbers, and despite the increase in population and economic changes like globalization and technological advancements.