A 22-year-old client is diagnosed with dependent personality disorder. Which behavior is most likely evidence of ineffective individual coping ？（）

A．Inability to make choices and decisions without advice.

B．Showing interest only in solitary activities.

C．Avoiding developing relationships.

D．Recurrent self-destructive behavior with history of depression.

关于力的下述说法中正确的是（　　）

A．力是物体对物体的作用

B．只有直接接触的物体间才有力的作用

C．力可以离开物体而独立存在

D．力的大小可以用天平测量