For decades when he controlled china, mao zedong failed to recognize that

For decades when he controlled China, Mao Zedong failed to recognize that population growth was a problem .

Explanation:

In 1949, China's population was almost half a billion people. Shortly after the establishment of the People's Republic of China, under Mao Zedong's idea of population as an asset, the population increased to one billion. At the end of the 1980s, the number was 1.27 billion. Population growth continued, even though fertility had largely declined since the 1970s.

The problem began to be noticed from 1959, when as a consequence of the policies of the Great Leap Forward carried out by Mao, the Great Chinese Famine took place, in which the overpopulation of the territory was combined with an enormous lack of productivity, which It resulted in the death of some 45 million Chinese citizens and the fall into a situation of extreme urgency for a similar number of people.

This made the Chinese government began to review this situation, beginning to authorize the use of contraceptives and stop urging fertility policies.

In 1972, the Chinese government established a maximum limit of two children in urban families, and from three to four in rural areas.

After Mao's death, Deng Xiaoping's regime, which came to power in 1978, established China's one-child policy. The limit was lowered to one child per couple and official birth permits were required. Crimes against politics were punished with harsh sanctions, such as fines, pressure on abortion, while those who followed the rules were financially rewarded. Note that the one-child policy was introduced as a temporary solution to an acute problem, although it was debated both abroad and within its own borders.

i think the answer is b.