Suppose in Ghana this year the real income, price level, interest rate, exchange rate, net taxes, conditions in the rest of the world, and expectations of future trends in the economy are given for households. If in this situation household wealth increases, this year in Ghana

a.private saving out of current income will rise.

b.private saving out of current income will decline.

c.private saving out of current income will remain unchanged.

d.private saving out of current income may rise or decline.