求教各位高人的问题如下：

2013 CFA I级 Note Economic P41的课后习题如下：
Which of the following least likely describes an unstable market equilibrium?
A. Excess supply will tend to drive prices down.
B. The supply curve is less steeply sloped than the demand curve.
C. Prices that differ from equilibrium values tend to move further away from equilibrium.

答案选A，这个选项不对。

对此，如附图所示，这种情况下，价格更加偏离其均衡值，应该在供>求的情况下，会迫使价格进一步下降才对啊？
答案却说这种情况下，会迫使价格上升。

为什么说这个选项不对呢？

有劳解答，谢谢！