The activity orientation of the American culture is reflected in:
选项：

A:It is a typical doing orientation culture.;
B:It is a typical being-in-becoming orientation culture.;
C:Emphasize the spiritual life, and focus on the development, thinking, introspection and self-improvement of people.;
D:Think that the pandemic has affected one's own work, and the state of doing nothing during the quarantine is disturbing.