Which of the Following Statements Best Defines Social Change

Which of the following statements best defines social change?

A) It is a gap between what people have and what they think they should have compared with others in a society.
B) It is the act of spreading rumors, often negative, about other people's personal lives.
C) It is an intense, fearful, and anxious reaction to a real or imagined threat by large numbers of people.
D) It refers to the spontaneous and unstructured social behavior of a large number of people.
E) It refers to the transformations of societies and social institutions over time.