Which of the Following Statements Concerning National Saving Is True

Which of the following statements concerning national saving is true?

A) An increase in the rate of saving will lead to a reduction in consumption and therefore to both a short- run and a long- run decrease in national income.
B) An increase in the rate of saving will cause an immediate increase in national income, but may cause a drop in national income in the long- run.
C) An increase in the rate of saving will always be offset by a reduction in private investment.
D) A country's saving rate is unrelated to its growth rate.
E) An increase in the rate of saving will lead to a short- run reduction in national income, but to higher economic growth in the long run.