Something china and japan have in common is

they borrowed and adapted western ideas.
they remained true to their cultural traditions.
they industrialized to improve their economies.
they have a history of strong cultural traditions.

The answer is: They have a history of strong cultural traditions.

Historically, both people from China and Japan were really proud with their own original culture/traditions. This made them adopted policy of isolationism until mid 1900s. They did not like if foreign influence come to their country and started to influence the original culture/traditions that created by their ancestors.

answer; (d) none of the above;

answer; primary source information;