Which is an example of karma?
Jane accidentally trips someone in the hallway but does not apologize. Later, someone helps her up when she trips.
Scott helps an elderly woman cross the street, and then he finds a $10 bill lying on the sidewalk.
Amanda gives her friend answers to the math test and ends up earning extra credit on her own test.
Jake drives his little sister to the mall, and then gets a flat tire on the way home.