Japan is a. a middle-income country, and over the past century its rate of economic growth has been lower than that of the United States. b. an advanced economy, and over the past century its rate of economic growth has been higher than that of the United States. c. a middle-income country, and over the past century its rate of economic growth has been higher than that of the United States. d. an advanced economy, and over the past century its rate of economic growth has been lower than that of the United States