- Special tissues in plants transport materials throughout the plant
- Xylem is a kind of special tissue in vascular plants
- Therefore, xylem transports materials through the plant

- Water is a kind of material
- A plants / living things require water for survival / to grow
- Hence, water is a kind of material that is required for plants' survival

- Xylem transports materials through the plant
- Water is a kind of material that is required for plants' survival
- Hence, xylem transports water that is required by plants

Hence, xylem transports water that is required by plants
Q: Vascular plants have tissue called xylem. Which of these is transported by the xylem?
Context:
- Water is a kind of material 
- Special tissues in plants transport materials throughout the plant 
- Xylem is a kind of special tissue in vascular plants 
- A plants / living things require water for survival / to grow