Which of the following is NOT a variation of the Forward Arming And Refueling Point (FARP)?

The option indicating "Rapid Response" is not recognized as a standard variation of the Forward Arming and Refueling Point (FARP). FARP is primarily designed to support military operations by providing quick refueling and rearming capabilities for aircraft in the forward area, allowing for greater operational efficiency.

The recognized variations include "Universal," which refers to a flexible FARP configuration suitable for different aircraft types; "Cold," which describes a FARP operation without helicopter activity; and "Assault," where a FARP is set up to support rapid missions where aircraft may require prompt servicing in combat situations.

Each of these variations plays a crucial role in enhancing operational readiness and response times for military aviation. In contrast, "Rapid Response" lacks the formal recognition within established military terminology or doctrine as a standalone variation of FARP, making it the correct answer to this question.