ABA plays an important role in plant response to water stress. In the table below, column X represents some of the important enzymes in ABA biosynthesis/degradation pathways, while column Y summarizes the major function of these enzymes.
| Column X (Enzymes) | Column Y (Functions) | ||
| A. | 9-cis-epoxycarotenoid dioxygenase | l. | Involved in the oxidative pathway of ABA catabolism |
| B. | Cytochrome P450 monooxygenase (CYP707A3) | ll. | Production of a sugar-conjugated form of ABA |
| C. | ABA glucosyltransferase | lll. | Xanthoxin production |
| D. | β-glucosidase | lV. | Releases ABA from its sugar-conjugated form |
Choose the option showing the correct match between column X and column Y?
1
A - iv, B - ii, C - i, D - iii
2
A - iii, B - i, C - ii, D - iv
3
A - ii, B - iii, C - iv, D - i
4
A - i, B - iv, C - ii, D - ii