This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Demography and family planning, Subject name: Social & Preventive Medicine
The growth pattern of a population with an annual growth rate of 1.5% to 2.0% is 
Select and explain. 
A. Slow growth, B. Moderate growth, C. Rapid growth, D. Very rapid growth
D: Very rapid growth
Answer: D: Very rapid growth 
Explanation: When crude death rate is substracted from crude bih rate ,the net residual is current annual grow rate , exclusive of migration. If the annual growth rate is increased from 1.5% to 2.0%, then it is rated as very rapid growth. Reference : Park&;s textbook of preventive and social medicine, 23rd edition, Pg no:481, table5