please answer correctly

Suppose that over the past 50 years, the crude birth rate was 3 percent per year, the crude death rate was 2 percent per year, the crude immigration rate was 1 percent per year, and the crude emigration rate was 2 percent per year. The population growth rate in this economy was __ percent per year. 2 O 4 1 6 Suppose that over the past 50 years, the annual rate of population growth was 2 percent per year, and the crude birth rate was 3 percent per year while the crude death rate was 2 percent per year. The growth rate of net migration was __ percent per year. 0 4 2 1 6