A Hospitalized Older Adult Who Recently Had Surgery and a Wound

A hospitalized older adult who recently had surgery and a wound infection postoperatively is noted to be losing weight despite consuming his meal trays and snacks. One reason that this might be occurring is:

A) an injury may trigger inflammatory mediators that increase metabolic rate and impair nutrient utilization.
B) an injury may cause malabsorption of nutrients.
C) most hospitalized older patients do not consume adequate amounts of micro- and macronutrients.
D) most hospitalized patients do not have accurate weights recorded upon admission.