Answer:
The correct answer is c.) The bystander effect
Explanation:
In social pshychology, The bystander effect is a claim that individuals when they are in group, or surrounded by many people are less likely to help a victim in a situation of need, the greater the number of bystanders the less likely it is that one will provide help. In this case, Mr. Hughes decided not to do something or to help the swimmer exactly becasue of this, he figured out one of the other bystanders would provide the help required by the swimmer, therefore his reaction reflects very clearly the Bystander Effect.
The most important sources of social changes are physical environment, technology, population, cultural innovation and social conflict. The statement is true.
<h3>What is social change?</h3>
Social changes refers to those changes that occurs in human being while interacting and making relationships which transforms the society and culture as a whole.
These changes benefits the society as a whole as technological development helps the future generations for example mobile phone helps social interactions and many more.
Thus social changes are important for future growth.
Learn more about changes here:
brainly.com/question/16971318
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