What are the three activation modes of IEDs?

The three activation modes of Improvised Explosive Devices (IEDs) are indeed best represented by the choice that includes command wire, victim operated, and remote control.

Command wire systems are designed so that the operator can manually detonate the device by completing a circuit that connects to a detonator. This allows for precise timing and control over the detonation, making it a commonly used method among bomb makers.

Victim-operated devices are triggered by the actions of unsuspecting individuals, such as pressure plates or tripwires. These devices are typically designed to detonate when someone steps on or interacts with the trigger mechanism, making them particularly insidious as they rely on the victim's movement.

Remote control systems allow the operator to detonate the device from a distance, which can be achieved through various means, such as radio signals or mobile phones. This activation mode provides the user with the flexibility to choose when to detonate, enhancing both the effectiveness and the concealment of the IED.

Other options present variations of activation modes, but they do not collectively capture the primary mechanisms that IEDs are commonly activated by, making them less accurate in the context of the question.