The British Economist Thomas Malthus Predicted Which of the Following

The British economist Thomas Malthus predicted which of the following?

A) Efficiency gains in technology will improve living standards over time.
B) Given that population growth is exponential, the Earth will eventually see a population in excess of 25 billion people.
C) Resource constraints will pressure the global population to enter a demographic transition
resulting in lower birth and death rates.
D) Famines and low living standards will always be the results because food supplies will
eventually become insufficient to meet demand.
E) All of the above.