How Has China Been Affected by Its One-Child-Per-Family Policy and Appreciation

How has China been affected by its one-child-per-family policy and appreciation of its currency?

A) The purchasing power of its workforce has declined.
B) The government no longer cares about capturing more of the value added.
C) The standard of living within the economy has become lower.
D) The country's advantage in low-cost manufacturing is now reduced.