Final answer:
Option (D), China and Japan both engaged in isolationist policies to limit European influence during Period 2. These policies involved trade restrictions and attempts to preserve their cultural and political autonomy.
Step-by-step explanation:
During Period 2, China and Japan implemented policies to limit the potentially disruptive influence of European powers. Historians typically refer to these policies as isolationist. Both China and Japan, at different times in history, sought to control and limit the presence and influence of Europeans by restricting trade and implementing measures aimed at preserving their traditional cultures and autonomy.
For instance, in the seventeenth century, Japan restricted trade to the city of Nagasaki and banned the influence of European Christianity, while China attempted to limit foreign interactions primarily to an exchange of tribute goods and went to lengths such as destroying ships and blocking harbors to prevent unwanted trade.