✅ Перевірена відповідь на це питання доступна нижче. Наші рішення, перевірені спільнотою, допомагають краще зрозуміти матеріал.
At a popular music festival, a large crowd gathered. Smaller groups formed – some attendees were sitting on the grass engaging in conversation, others were dancing, and some were swaying along to the music. One small group raised their water bottles while swaying along with the music. Before long, most of the crowd repeated the behaviour; even newcomers entering the crowd. Such behavioural changes are best described by ___.