​Several servings of ________ foods (fruits,vegetables,peas and beans,whole grain cereals) should be included in the daily diet to promote a healthy digestive tract and prevent constipation.

A) ​fiber-rich
B) ​high carbohydrate
C) ​low-density lipid
D) ​nutrient-rich

Fiber-rich

Refers to foods that have a high content of dietary fiber, which is beneficial for digestive health, and can aid in maintaining a healthy weight and lowering the risk of various diseases.

Digestive Tract

The series of hollow organs joined in a long, twisting tube from the mouth to the anus, through which food is digested.

Constipation

A sluggish action of the bowel; usually refers to an excessively firm, hard stool that is difficult to expel or lack of a bowel movement over a time.