Answer:
female infanticide
Explanation:
In china they wanted the population to go down. Therfore making it so each family can only have one child. Most familys wanted to carry on their family name, so they kept the males. Getting rid of the females.
Myths warn against being selfish by showing readers/listeners what it does to them and what bad thing's could possibly come from being selfish idk thats all I got lol sorry.