Refer to the Above Graph

Multiple Choice

Refer to the above graph. The ratchet effect would suggest that:

A) if AD₁ moves to AD₂, the new equilibrium would be at b.
B) if AD₁ moves to AD₂, the new equilibrium would be at c.
C) if AD₂ moves to AD₁, the new equilibrium would be at a.
D) if AD₂ moves to AD₁, the new equilibrium would be at b.