Which one of the following may require pollinators, but is genetically similar to autogamy ?

Definations / Explanation :

$1.$ chasmogamous

$2.$ Cleistogamous

Aquatic plant like water-hyacinth and water lily are pollinated by

Xenogamy or cross-pollination is performed by

$I$. Abiotic agencies

$II$. Biotic agencies

$III$. Insects only

Select the correct option for the given question

Which of the following is not a characteristic feature of insect pollinated flowers?