Constant returns to scale is the point on a production function where increasing inputs will no longer increase output

What is the fundamental argument in Malthus' An Essay on the Principle of Population?

A. Ultimately, population growth rate would outpace growth in real GDP leading to declining standards of living. B. Population growth tends to undermine global stability which is a stimulus for future wars and conflicts. C. Population would increase at a geometric rate and the food supply at an arithmetic rate and that this disharmony would lead to forced return to subsistence-level conditions. D. Population growth is the root cause of hunger, poverty, environmental destruction, disease, and social unrest.

Suppose that IS and LM intersect at full-employment output. A rightward shift of IS will be followed by a __________ price level that shifts LM to the __________ in a return to full-employment

A) rising; right B) rising; left C) falling; right D) falling; left