Which behavior includes the need to strictly adhere to verbal and nonverbal rituals?

The behavior that involves a strict adherence to verbal and nonverbal rituals is characterized by a strong preference for consistency and routine in one's environment and interactions. Individuals who demonstrate this behavior often resist changes and exhibit significant distress when faced with unplanned alterations in their routines or rituals.

Insistence on sameness encapsulates the need for stability and predictability, leading individuals to engage in specific behaviors or rituals to maintain that sense of order. This can manifest in various forms such as following specific sequences in daily activities, repeating phrases, or performing actions in a particular manner.

Stereotyped or repetitive behavior refers more broadly to repetitive movements or actions, while highly restricted interests are focused on intensely absorbing and specific areas of interest. Hyper or hyporeactivity relates to sensory responses and does not directly address the ritualistic behaviors described in the question. Therefore, insistence on sameness is the most accurate choice when identifying behaviors related to strict adherence to rituals.