Cytokinins are predominantly present in
Meristematic tissue
The correct option is B.
Explanation of the correct option:
Explanation of the incorrect options:
Option A:
Permanent tissue - will not produce plant growth regulators.
Option C:
Endodermis - will not produce plant growth regulators.
Option D:
Cortical region - will not produce plant growth regulators.
Final answer: Cytokinins are predominantly present in meristematic tissue.