Which type of grenade is specifically designed for riot control?

Riot control grenades are specifically designed for crowd management and riot control situations. These devices usually contain non-lethal agents such as tear gas or other irritants that can disperse crowds while minimizing lethality. They are meant to incapacitate individuals temporarily by inducing discomfort, allowing law enforcement or military personnel to manage unruly situations without resorting to lethal force.

In contrast, frag grenades are designed to cause explosive damage and injury through shrapnel, primarily in combat situations rather than for crowd control. Incendiary grenades create fires and burn, which is not suitable for controlling riots where the goal is to manage the crowd rather than inflict severe harm or destruction. Training grenades are typically used for practice and do not have operational deployment in real-world scenarios. Thus, the riot control grenade is the most appropriate answer for managing disturbances in a non-lethal manner.