One Bed Is Available on the Inpatient Eating Disorders Unit

One bed is available on the inpatient eating disorders unit. The patient with which of the following weight decrease should be admitted to this bed?

A) From 70 to 45 kg over a 4-month period. Vital signs are temperature, 35.9°C; pulse, 38 beats/min; blood pressure 60/40 mm Hg
B) From 55 to 40 kg over a 3-month period. Vital signs are temperature, 36°C; pulse, 50 beats/min; blood pressure 70/50 mm Hg
C) From 50 to 32 kg over a 4-month period. Vital signs are temperature 36.5°C; pulse, 60 beats/min; blood pressure 80/66 mm Hg
D) From 40 to 35 kg over a 5-month period. Vital signs are temperature, 36.7°C; pulse, 62 beats/min; blood pressure 74/48 mm Hg