Advantage of cleistogamy is

Correct Option (c)

Reason : In cleistogamous flowers, anthers and stigma lie close to each other. When anthers dehisces in the flower buds, pollen grains come in contact with the

stigma to effect pollination. Thus, these flowers produce assured seed set even in the absence of pollinators.

The higher genetic variability and more vigorous offsprings are produced due to variations obtained by sexual reproduction. Vivipary relates to the birth of young babies from mammals.