food made by the plant water needed by the plant pollen for plant reproduction carbon dioxide for photosynthesis
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Vascular plants have tissue called xylem. Which of these is transported by the xylem?
Possibilities:
- food made by the plant
- water needed by the plant
- pollen for plant reproduction
- carbon dioxide for photosynthesis

water needed by the plant