Answer:
A) has decreased in size from 5.9 to 1.5 children
Step-by-step explanation:
The Chinese people had high birthrates, and the population was growing quickly. On top of that, the population was already the largest in the world and it was becoming way to big for the country to be able to sustain itself. In order to stop this process and regulate the population, the Chinese government decided to implement a law where there would be limitation in the number of children a family can have. This law was passed in 1979, and it did its job properly, as the average Chinese family decreased significantly in size, and from 5.9 children and got down to 1.5 children per family.