Answer:
Option A
Step-by-step explanation:
Your answer is option A or the "stamen." The stamen is a reproductive organ of a flower that produces the pollen. When a bee visits for a meal of nectar the stamen is the part of the flower that deposits pollen on the bee's body. It's not option B because the sepal functions as protection for the flower, and it's not option C because the petals main purpose is to attract the bees to the flower to pollinate.
Hope this helps.