Question

How did the one-child policy result in large numbers of undocumented Chinese?

Answer 1

The answer is D)

After their first child, many mothers hid any other children they had, thereby causing them to be undocumented.

Answer 2

The one-child policy had people pay special fees as punishment for having more than one-child. This led to a large number of hidden undocumented children that were hidden to avoid breaking the law. This mostly occurred in rural areas and was a big problem for the government.