i think its rite is it?

13.) . The visit of an influential nuclear physicist to a population symposium in 1979 led to

A. the two-child policy in China.
B. the election of Deng Xiaoping in China.
C. new nuclear-power safety measures in populated areas in China.
>>>D. the one-child policy in China.

1 answer

He was not a nuclear scientist, Song Jong was and is a very famous control engineer.

https://webspace.utexas.edu/hl4958/contemporary-chinese-history/Greenhalgh%20-%20Science,%20Modernity,%20and%20the%20Making%20of%20China%27s%20One-Child%20Policy.pdf

see page 168-169

D is the right answer.