Which of the following outbreeding devices are used by majority of flowering plants to prevent inbreeding depression ?
(i) Pollen release and stigma receptivity are not synchronised
(ii) Different positions of anther and stigma .
(iii) Production of different type of pollen grains
(iv) Formation of unisexual flowers along with bisexual flowers.
(v) Preventing self-polen from fertilising the ovules by inhibiting pollen germination .

Options

A. (i) , (ii) and (v)
B. (ii),(iii) and (v)
C. (i), (iii) and (v)
D. (iii) , (iv) and (v)