It is not possible to answer because there is no Conversation. Or the answer would be none because of the same reason.
B. Winnowing wind because of the repetition of 'w'
Since bees help pollinate plants, a lack of pollination could prevent certain species of vegetation from growing. Therefore, the plants could be driven into extinction. These plants act as a food source to many animals, so if the animals have nothing to eat, they'd die off as well. Consequently, our own food supply of crop and animal would decrease.
