Study the given flow chart carefully and select the option which is a correct match of xylem and phloem?
| Xylem | Phloem | |
| A | P | R |
| B | R | S |
| C | S | R |
| D | Q | R |
This is super weird...Where are the labels, P, Q, R and S?Could someone tell me where each label goes (If you know...)?