Final answer:
The U.S. Navy's professional identity does not include individualism as a core attribute.
Step-by-step explanation:
The core attributes of the U.S. Navy's professional identity include integrity, accountability, and initiative. However, individualism is NOT a core attribute of the U.S. Navy's professional identity. Individualism emphasizes the independence and self-reliance of individuals, but the U.S. Navy values teamwork and a collective sense of purpose. Therefore, the correct answer is C. Individualism.