If the United States Experiences Lower Personal Savings Rates,then It

If the United States experiences lower personal savings rates,then it must be the case that:

A) the federal government is running a budget surplus to make up for the decrease in personal saving.
B) any increase in domestic investment must be financed by foreign funds.
C) the United States is experiencing fast economic growth because people are spending a larger portion of their income.
D) the United States is experiencing slow economic growth because people are spending a larger portion of their income.
E) domestic interest rates are high.