Identify the etiology portion of the PES statement Inadequate Energy Intake related to decreased ability to consume sufficient energy secondary to chronic COPD as evidenced by consuming less than 75% of estimated needs for one month, weight loss of 5% in one month, reported lack of appetite. A. Inadequate Energy Intake B. Etiology is not documented C. decreased ability to consume sufficient energy secondary to chronic COPD D. consuming less than 75% of estimated needs for one month, weight loss of 5% in one month, reported lack of appetite.