Hormone inducing fruit ripening is
a)	Ethylene	b)	Cytokinin	c)	Gibberellic acid	d)	Abscisic acid

(a)

Ethylene is the only gaseous hormone. Main roles of ethylence are as follows:

1. It helps in ripening of fruits like mango, banana, etc. Due to this property, it is popularly known as ripening hormone.

2. It accelerates apical dominance, senesence of leaves and flowers.

3. It inhibits geotropism, flowering, etc.