What Saving Rate Is Optimal

What saving rate is optimal?

A) The rate of spending that produces the minimum level of consumption per capita in the long-run steady state.
B) The rate of saving at which the community will be made no better off by additional saving.
C) The rate of saving that produces the steady level of consumption per capita in the long- run steady state.
D) The rate of saving that produces the maximum level of consumption per capita during the recession.