A Car Crash Woke John from His Afternoon Nap

Multiple Choice

A car crash woke John from his afternoon nap. When he looked out his apartment window, he saw several people milling around two smashed cars. He decided not to dial 911 because he assumed someone had already called. John's reaction is an example of ________.

A) the bystander effect
Do so.
B) pluralistic compliance
C) obedience to authority
D) conformity to social norms
Help.