The correct answer is B. Phloem.
Phloem is a vascular tissue in plants that carries organic compounds, primarily sugars, produced in photosynthesis from leaves to other parts of the plant. Phloem is composed of living cells that form tube-like structures called sieve tubes. Sieve tubes are connected to each other by sieve plates, which are porous areas that allow the movement of sugars and other nutrients.
Xylem is a vascular tissue in plants that transports water and minerals from the roots to the leaves. Xylem is composed of dead cells that form long, narrow tubes called tracheids. Tracheids are connected to each other by pits, which are small openings that allow the movement of water and minerals.
Cortex is the layer of cells between the epidermis and the phloem in the stem of a plant. Cortex cells are living cells that perform a variety of functions, including photosynthesis, storage, and transport.
Cambium is a layer of cells in the stem and root of a plant that is responsible for secondary growth. Cambium cells divide to produce new xylem and phloem cells, which allow the plant to grow in diameter.
In conclusion, the food material prepared in the plants is transported to the various organs by phloem. Phloem is a vascular tissue that carries organic compounds, primarily sugars, produced in photosynthesis from leaves to other parts of the plant.