Which of the following is an example of insistence on sameness?

Insistence on sameness refers to a strong preference for consistency and familiarity, often resulting in distress when faced with change. The option that highlights an emotional response to alterations in routine directly captures this characteristic. When an individual feels distressed over changes in routine, it signifies that they rely heavily on their established patterns and may struggle with any disruption to those patterns.

In contrast, enjoying various flavors of food demonstrates flexibility and openness to new experiences, which doesn’t align with insistence on sameness. Having a preference for multiple routes to school suggests adaptability rather than a need for consistency. Finally, being indifferent to new experiences indicates a lack of emotional response to changes, which doesn't reflect the need for sameness or the distress that can accompany changes in routine. Thus, the focus on experiencing distress when routines shift clearly illustrates what is meant by insistence on sameness.