Which term indicates that a specific command has been executed and the area is now clear?

The term that indicates a specific command has been executed and the area is now clear is "Clear." This term is commonly used in military and operational contexts to denote that an area has been successfully checked for threats, hazards, or unwanted personnel, and has been deemed safe for subsequent operations or activities. It signifies confidence that no further actions are necessary and that the area is free from danger.

While the other terms might convey related concepts, they do not specifically communicate the idea of the area being cleared after a command. "Scorched Earth" refers to a military strategy that involves destroying resources to hinder the enemy, but does not imply safety or clearance. "Exterminated" implies complete elimination, often in a more aggressive or final sense, but lacks the direct connotation of an area being operationally clear. "Declared Safe" can imply an area has been cleared, but it is less commonly used in the immediate context of reporting operational status compared to "Clear," which is more straightforward and widely understood in military jargon.