The statement that describes the cause of the Cold War most objectively is:
"The Cold War evolved as the USSR and Western allies deployed their own strategies and policies to rebuild the post-war world according to their own needs and values."
This statement recognizes the complexity of the situation, acknowledging that both the Soviet Union and Western allies had differing ideologies, interests, and strategies in the aftermath of World War II, which contributed to the tensions that defined the Cold War era. It avoids oversimplifying the conflict as merely a natural outcome of ideological competition or attributing it solely to military failures.