What Are Xylem and Phloem

What are xylem and phloem?

A) The roots and stems of a plant.
B) The chemicals a plant uses to convert solar energy to usable energy.
C) The two categories of plants most commonly eaten by animals.
D) The vessels of the digestive system of a plant, one carrying water and one carrying food throughout the plant
E) The vessels of the circulatory system of a plant, one carrying water and one carrying food throughout the plant