Della believes she earned an "a" in chemistry because the test was easy and she made a lot of lucky guesses. it is likely that della has a(n) locus of control.

According to the article,"social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media