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
'Explosive' growth rates occurs when annual rate of growth% 
Select and explain. 
A. 0.5-1.0, B. 1.0-1.5, C. 1.5-2.0, D. > 2.0
D: > 2.0
Answer: D: > 2.0 
Explanation: (> 2.0): Ref: (413-Park 20th)GROWTH - RATES: - When the crude death rates is substracted from the crude birth rate, the net residual is the current annual growth rate, exclusive of migration.Relation between growth rates and populationsRatingAnnual rate of growth %Number of years required for the population to double in size* Stationary population* Slow growth* Moderate growth* Rapid growth* Very rapid growth* "Explosive" growth* "Explosive" growth* "Explosive" growth* "Explosive" growthNo growthLess than 0.50.5 to 1.01.0 to 1.51.5 to 2.02.0 to 2.52.5 to 3.03.0 to 3.53.5 to 4.0--More than 139139-7070-4747-3535-2828-2323-2020-18