Final answer:
LEADS certified operators receive training on software applications, hardware devices, and operating systems.
Step-by-step explanation:
LEADS certified operators receive training on current versions of software applications, hardware devices, and operating systems. This means that they are taught how to use and operate various software applications and hardware devices, as well as become familiar with different operating systems such as Microsoft Windows. Therefore, the correct answer to this question is 4) All of the above.