Given below are two statements : Statement I: Cleistogamous flowers are invariably autogamous Statement II: Cleistogamy is disadvantageous as there is no chance for cross pollination In the light of the above statements, choose the correct answer from the options given below :

Step-by-step solution

Cleistogamous flowers mean anther and stigma present close each other in the closed flower. They are bisexual which cannot open even at maturity and thus self-pollination occurs. For this reason these type of flowers are invariably autogamous. Cleistogamous flowers undergo self-pollination only, which reduces the chances of variation and evolution of genetically superior progeny.