Which of the following examples BEST illustrates a "self-fulfilling prophecy?"
1) A husband feels frustrated at work, so he acts aggressively toward his wife
2) An individual feels like they're catching a cold, so they think positive thoughts about wellness in order to not get sick
3) A girl does poorly on a math exam, is told that that's because girls are bad at math, so she decides not to study for the next exam
4) As time marches forward, minority groups like gays, lesbians, and transgendered individuals acquire more and more rights and liberties