According to Malthus, population increases by geometric progression, while food production increases by arithmetic progression. This means that population growth is exponential, while food production is linear. This leads to a situation where population growth will eventually outstrip food production, leading to famine and starvation.
Option A, systematic progression, is incorrect because it does not accurately describe Malthus’s theory. Option B, arithmetic progression, is incorrect because it does not accurately describe Malthus’s theory. Option C, geometric progression, is correct because it accurately describes Malthus’s theory. Option D, automatic progression, is incorrect because it does not accurately describe Malthus’s theory.