Which row in the table is the correct description for the process of translocation in plants?
| Main cell type involved in transport | Key organic substance transported | Mechanism driving movement | |
|---|---|---|---|
| A | Companion cells | Sucrose | Hydrostatic pressure gradient |
| B | Sieve tube elements | Glucose | Transpiration pull |
| C | Sieve tube elements | Sucrose | Hydrostatic pressure gradient |
| D | Companion cells | Glucose | Cohesion-tension |
Row A\text{Row A}Row A
Row B\text{Row B}Row B
Row C\text{Row C}Row C
Row D\text{Row D}Row D