Final answer:
Deindividuation refers to situations where a person feels a sense of anonymity and reduced accountability in a group. Option C correctly represents deindividuation as a group of five individuals being more likely to perform an act of robbery than a single individual. Correct option is C.
Step-by-step explanation:
Deindividuation refers to situations in which a person may feel a sense of anonymity and a reduction in accountability and sense of self when among others. One example of deindividuation is when a group of individuals is more likely to engage in risky behavior, such as skydiving, than an individual due to less constraint (option A).
Another example is when a group of five individuals is more likely to perform an act of robbery than a single individual (option C). Therefore, the correct answer is option C, 'a group of five individuals is more likely to perform an act of robbery than a single individual.'