Nutrition is the science that investigates select one: a. the discovery of new nutrients. b. the process of digestion and metabolism that breaks food down for use by the body. c. the relationship between the body's functioning and the elements of food eaten. d. diseases of the digestive tract.

The correct answer will be option-C

Explanation:

Nutritional science is the field of the study which deals with the study of the interaction of the eaten food nutrients to the response of the body's function.

The body functions are observed in the form of the growth, maintenance, reproduction and heath facilitated by the food intake, catabolism, absorption, biosynthesis and excretion.

Since science studies about the relationship between nutritional intake, utilization and body's function, therefore, Option-C is the correct answer.

answer; (c); /out to the side and directly under the dogs neck.