The correct answer is D.
OBJ-4.2: US Military strategist Colonel John Boyd first created the OODA (Observe, Orient, Decide, Act) loop. COL Boyd famously demonstrated his thought model within the air-to-air combat domain with a high success rate. COL Boyd claimed that he could begin any scenario with an adversary pilot directly behind him. Within a tactically short period of time, he could reverse the alignment to be behind his adversary. The OODA loop construct has been successfully applied to almost every field where competition against an adversary is a definitive feature. Therefore, it can be useful for cybersecurity defenders trying to outmaneuver an adversary in their networks, too!