Final answer:
Japanese nationalism in the 17th century was A. isolationist, focusing on cultural independence and minimizing foreign influence. However, Japan's stance evolved into expansionism in later centuries, evidenced by its imperialist actions in East Asia and the creation of the Greater East Asia Co-Prosperity Sphere.
Step-by-step explanation:
Japanese nationalism in the 17th century can best be classified as A. isolationist. During this period, Japan was focused on maintaining its cultural independence and preventing foreign influence on its society and policies.
This isolationist attitude was reflected in policies such as Sakoku, which restricted foreign trade and forbade Japanese citizens from traveling abroad.
However, by the 19th century and going into the 20th century, Japan's stance shifted towards expansion, as they began to assert their influence and control over regions like Korea, Taiwan, and parts of China and Russia.
The Japanese Empire sought to modernize and expand, viewing themselves as destined to lead in East Asia and challenge Western imperialism.
This led to the establishment of the Greater East Asia Co-Prosperity Sphere aiming for a new order in East Asia centered on Japanese leadership.