Which of the following is an example of the influence of nature, or genetics, on a person?
1. A child learns that chewing with their mouths open is rude.
2. A child of divorced parents shows the same tendency toward extroversion as her twin sister living across the country with her father.
3. A child growing up in a culture that promotes humility comes to value humility.
4. A child of Spanish speaking parents learns Spanish even though they live in England.