Answer:
The correct answer is option C. gibberellin.
Explanation:
Gibberellin is a type of fungal and plant growth hormone. Â Gibberellin is one of five main groups of plant hormones.
Gibberellin has different functions and roles in plant growth and regulation such as stem elongation, stem germination, fruit ripening, and flowering.
The gibberellin acid class of hormones has been commonly used in the control of flowering in several species by the florist,
Thus, the correct answer is option C.
