Real gdp per person in northland is $30,000, while real gdp in southland is $10,000, however, northland's real gdp per person is growing at 1 percent per year, and southland's real gdp per person is growing at 3 percent per year. if these growth rates persist indefinitely, then: a. northland's real gdp per person will decline until it equals southland's. b. northland's real gdp per person will always be between 1 and 2 percent greater than southland's. c. southland's real gdp per person will always be exactly 2 percent less than northland's. d. southland's real gdp per person will eventually be greater than northland's.