Final answer:
The national population growth rate is calculated as -12/1000, or a negative growth rate, due to a higher crude death rate and emigration exceeding immigration, aligning with option D.
Step-by-step explanation:
To calculate the national population growth rate for a country, we use the crude birth rate, the crude death rate, the immigration rate, and the emigration rate. The formula to determine the population growth rate is:
Growth rate = (Birth rate - Death rate + Immigration rate - Emigration rate) / 1000
Given that a country has a birth rate of 24/1000, a crude death rate of 38/1000, an immigration rate of 8/1000, and an emigration rate of 6/1000, we can calculate the growth rate as follows:
Growth rate = (24 - 38 + 8 - 6) / 1000
Growth rate = (-14 + 2) / 1000
Growth rate = -12 / 1000
Since emigration is exceeding immigration, and the death rate is higher than the birth rate, the country is experiencing a negative growth rate of -12/1000, which corresponds to option D.