Choose the correct combinations from the following
| I) Auxin | - Differentiation of shoots and roots |
| II) Gibberellins | - Opening of stomata |
| III) Cytokinins | - Delaying the aging in leaves |
| IV) ABA | - Seed dormancy |
1
I, II, III
2
I, III, IV
3
II, III, IV
4
I, II, IV