Has the One-Child-Per-Couple Policy in China, Implemented in the 1970s

Has the one-child-per-couple policy in China, implemented in the 1970s, been successful in terms of reducing the population growth rate?

A) Yes, the population is much smaller than it otherwise would have been and is projected to peak in 2030 and then decline.
B) Yes, the population growth rate has stabilized and is now at equilibrium.
C) No, the population was so big to start with it's still growing exponentially out of control.
D) No. In fact people were so angered by it that they probably produced more children than they otherwise would have.
E) It's too soon to tell.