The U$.$S$.$ Border Patrol works closely with other federal, tribal, state, and local partners to resolve search and rescue operations across southern Arizona. In one incident a local emergency response call center routed a $911$ call to Tucson Sector Border Patrol Agents from two men daiming to be in lost in the desert. The Agents, with the assistance of a local sheriff's department helicopter, located the men several hours later in a remote area. Difficult terrain forced the helicopter to drop off Emergency Medical Technicians $($EMTS$),$ one a Tucson Sector Agent and the other a firefighter from the local fire department. The EMTs medically stabilized the two men shortly after $6$ a$.$m$.,$ and they were airlifted to a local hospital by Arizona State Helicopter Trooper$-$Paramedics.

From the information given above, it CANNOT be validly concluded that, in the incident described above,

A$)$ at least one Tueson Sector Border Patrol Agent was an EMT

B$)$ some officers who located the men lost in the desert were Tucson Sector Border Patrol Agents

C$)$ there are some Tucson Sector Border Patrol Agents who are not EMTs

D$)$ at least some officers who airlifted the men to a local hospital were State Helicopter Trooper$-$Paramedics

E$)$ at least one Tucson Sector Border Patrol Agents were not absent during the act of locating and rescuing the men who were lost in the desert