Considering the situation described above, this is an example of "diffusion of responsibility."
This is because diffusion of responsibility is described as a situation whereby an individual tends not to take responsibility for a particular action or activity when other bystanders or people are nearby.
This is phenomenon is based on the idea that individuals tend to believe others nearby would carry out the actions instead of them.
Diffusion of responsibility is a socio psychology issue, and it is believed to be caused by a prosocial and antisocial factors.
Hence, in this case, it is concluded that the correct answer is option A. "diffusion of responsibility."
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