On Average,Japanese Workers Have Lower Hourly Productivity and Work Fewer

On average,Japanese workers have lower hourly productivity and work fewer hours than their Italian counterparts,yet Japan has a higher GDP per capita than Italy. This is because

A) Japan has a larger population than Italy
B) Japan has a higher labor force participation rate and employment rate
C) Japan exports more goods than Italy
D) Japan has a smaller underground economy than Italy
E) There are statistical discrepancies in the two nations' data collection systems