Final answer:
Alfred Thayer Mahan's vision to create naval bases in the Pacific Ocean was driven by national security.
Step-by-step explanation:
Alfred Thayer Mahan's vision to create many naval bases in the Pacific Ocean was driven by the option of National Security. Mahan argued that sea power was essential for a nation's greatness, and a powerful navy was necessary to protect merchant ships, ensure economic prosperity, and maintain military dominance. He recommended the establishment of strategic military bases in the Pacific and the Caribbean to safeguard American interests and project strength.