This photo, taken by the US Air Force, shows an FBI SWAT team conducting a hijacking exercise at Keesler Air Force Base.
What is not part of an individual s outfit and equipment?

Вариант ответа 1 - a) pair of goggles
Вариант ответа 2 - b) handheld radio
Вариант ответа 3 - c) knee pad
Вариант ответа 4 - d) GPS device