The correct option is
A GA3
The correct option is A
Explanation of the correct option-
- Gibberellins are plant hormones that regulate different developmental aspects like elongation of the stem, germination of seeds, sprouting, flowering, parthenocarpy, and sex expression in flowers.
- GA3 type of gibberellin, also called gibberellic acid, is the most active form found in plants.
Final Answer
Common gibberellin is GA3.