One theory of population contends that population tends to increase much faster than the supply of food, and that if the growth in population is not checked , it will be checked by natural forces like misery disasters and food shortages. This theory was propounded by?

A. Prof. Paul Samuelson
B. Adam Smith
C. David Ricardo
D. Rev. Thomas Malthus  
E. Prof. Ojetuuji Aboyade

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Correct Answer: D