Which of the following is responsible for fruit ripening?

Correct option is B

· Correct answer: (b) Ethylene
· Ethylene is a plant hormone that plays a key role in fruit ripening. It is responsible for the initiation of the ripening process in many fruits.
Other options:
· (a) Gibberellins: While gibberellins influence growth and development, they are not directly involved in fruit ripening.
· (c) Cytokinin: Cytokinins promote cell division but are not responsible for fruit ripening.
· (d) Abscisic Acid: Abscisic acid regulates seed dormancy and plant stress responses but is not involved in fruit ripening.