About Twelve to Twenty-Four Hours After the Previous Meal, a Person's

Multiple Choice

About twelve to twenty-four hours after the previous meal, a person's blood-sugar level normally varies from 60 to 90 milligrams per 100 milliliters of blood, though it may rise to 130 mg/100 ml after meals high in carbohydrates.That the blood-sugar level is maintained within a fairly narrow range despite uneven intake of sugar is due to the body's ability to carry out

A) adaptation.
B) inheritance.
C) metabolism.
D) homeostasis.
E) all of these.