请教胡老师

关于讲义中的这个习题，

Which of the following statements about market economies having self-correcting mechanisms is TRUE?
A)When output is not at its maximum potential interest rates will fall because of weak demand for investments.
B)When output is not at its maximum potential prices will increase until maximum output has been reached.
C)When output is greater than the economy's full employment potential real interest rates will fall.
D)When output is greater than the economy's full employment potential prices will fall because of excess supply of goods and services.

1）我理解：三种自我纠正机制中含有resource price，在不充分到充分就业的调整过程中，价格也正是从低到高、利率从低到高的运动过程。为什么B不正确？

2）另外，我还不明白的的一个问题：凯恩斯不推崇价格的调节作用和这里的resource price 的自我纠正过程是不是矛盾？