The graph indicates a movement in the liquidity preference curves for an economy from LP1 to LP2. What could have led to this movement?
- Aincrease in real national income; increased pessimism about the future of the economy
- Bincrease in real national income; decreased pessimism about the future of the economy
- Cdecrease in real national income; increased pessimism about the future of the economy
- Ddecrease in real national income; decreased pessimism about the future of the economy