In chasmogamy pollination takes place in
a)	Open flower	b)	Closed flower	c)	Large flower	d)	Geitonogamy flower

(a)

Chasmogamy is the type of autofertilisation (self-fertilisation) in which both male and female gametes present on same flower but pistil and stamen have special adaptation like bending length, etc., so that fertilization takes place. They are open flower not closed like cleistogamous flowers