HELP ASAP WILL GIVE AND EXTRA POINTS What is cultural diffusion?

to accept a new idea and fit it into the culture
to add words to our language based on new technology
the way communication technology has increased the rate of cultural change
the movement of customs and ideas among cultures

Fictional characters behave according to the same psychological probabilities as real people. but the characters of fiction are found in exotic dilemmas that real people hardly encounter. consequently, fiction provides us with the opportunity to ponder how people react in uncommon situations, and to deduce moral lessons, psychological principles, and philosophical insights from their behavior.