After sustaining a serious brain injury, the patient has recovered enough to be transferred to a rehabilitation unit for continued care. Which statement by the patient indicates that they understand realistic goal setting?

A. Recalling remote memories like childhood events may not be fully restored and is often unrealistic. B. Active participation in rehabilitation is a realistic and essential goal to maximize recovery. C. Complete recovery of motor and sensory function may not be possible depending on injury severity. D. Full restoration of preinjury personality traits is unlikely; some changes may persist.