In Group I-2 occupancies, smoke barriers must be provided for spaces used by persons who are ___________.

In Group I-2 occupancies, which typically include healthcare facilities such as nursing homes, hospitals, and similar settings, smoke barriers are crucial for ensuring the safety and well-being of individuals. These barriers are specifically designed to protect occupants who may have reduced mobility or who are otherwise unable to evacuate quickly in case of a fire.

When considering spaces used by individuals receiving care, treatment, or sleeping, each of these groups may be especially vulnerable during an emergency. Those receiving care might be undergoing various medical procedures and may not be able to leave the premises on their own. Similarly, individuals receiving treatment could be in a state that requires constant monitoring and assistance, making immediate evacuation challenging. Finally, those who are sleeping are completely unaware of their surroundings and require protection from smoke and fire hazards.

The requirement for smoke barriers in various spaces within Group I-2 occupancies reflects a comprehensive approach to safety, as it addresses the needs of all vulnerable individuals in these environments. Thus, providing smoke barriers for all indicated categories—those receiving care, treatment, and those sleeping—ensures a higher safety standard, solidifying the correct response as encompassing all of these scenarios rather than limiting it to one category.