Assuming Diminishing Returns

Multiple Choice

Assuming diminishing returns,

A) the increase in output growth from an increase in the saving rate rises over time,and that,other things the same,rich countries should grow faster than poor ones.
B) the increase in output growth from an increase in the saving rate falls over time,and that,other things the same,rich countries should grow faster than poor ones.
C) the increase in output growth from an increase in the saving rate rises over time,and that,other things the same,poor countries should grow faster than rich ones.
D) the increase in output growth from an increase in the saving rate falls over time,and that,other things the same,poor countries should grow faster than rich ones.