The ratio of cytokinins to auxin controls cell differentiation in a callus, if:

I. Auxin levels increase shoot buds develop from the callus

II. Cytokinins level increase, roots form

1. Only I is correct

2. Only II is correct

3. Both I and II are correct

4. Both I and II are incorrect

Consider the given two statements:
I. Generally, phenotypic plasticity is more important for immobile organisms (e.g. plants) than mobile organisms (e.g. most animals).
II. Plants follow different pathways in response to environment or phases of life to form different kinds of structures.

1. Both I and II are correct and II explains I

2. Both I and II are correct but II does not explain I

3. I is correct but II is incorrect

4. Both I and II are incorrect