Which Force Protection Condition (FPCON) applies in the immediate area where a terrorist attack has occurred or when intelligence is received that terrorist action against a specific location or person is imminent?

The correct choice is C, DELTA. This condition is implemented in response to a specific and immediate threat. FPCON DELTA signifies that a terrorist attack has occurred or that credible intelligence indicates that an attack is imminent against a specific target. This level of readiness requires the highest alert and the most stringent security measures, including increased personnel presence, more rigorous security checkpoints, and a heightened level of situational awareness among service members and security personnel.

In contrast, other FPCON levels represent varying degrees of general threat or risk. For instance, FPCON CHARLIE indicates that an incident occurs or intelligence is received suggesting that an attack is likely, but it does not provide the immediate responsive measures of DELTA. Similarly, FPCON BRAVO suggests an increased and more predictable threat of terrorist activity, while FPCON ALPHA reflects a general threat and is the least severe of the protective postures.