The correct option is B Entomophilous flowers
Pollenkitt is a sticky covering found on the surface of pollen grains. It is found in some plant families more often than others, but it is especially common in plants that are pollinated by insects. Because of this, scientists believe that one of the major functions of pollenkitt is to help the pollen to stick to the bugs. Honeybees have special body parts where they pack pollen to be carried back to the hive. The parts-one on each hind leg- are called corbiculae or pollen baskets. The corbiculae are covered with hairs which help to hold the pollen in place, but very sticky pollen can form large clumps-something that makes provisioning even easier.