Which of the following operations is focused on locating living victims?

The operation primarily focused on locating living victims is search operations. This aspect of firefighting involves systematically looking for individuals who may be trapped, disoriented, or unable to escape from a hazardous environment such as a burning building. Search operations are conducted to ensure that all potential victims are found and rescued, placing significant emphasis on assessment and identification of living conditions.

In contrast, rescue operations involve retrieving victims once location has been established, but they are not specifically about the searching process itself. Attack operations generally focus on combating and controlling the fire, while salvage operations are concerned with protecting property from damage during and after the firefighting efforts. Thus, the core purpose of search operations distinctly aligns with the mission to locate and assist living victims amidst emergency situations.