Answer:
The correct answer is - the stigma at the top of the pistil receives pollen.
Step-by-step explanation:
Pollination or transfer of the pollen from one flower to another occurs naturally with the help of the animals, insects, or wind. With the help of these carriers, pollen moves from the flower to the one plant to the receptive surface of the stigma of other plants.
Stigma is the sticky top of the pistils which receives the pollen and starts fertilization by growing a tube to the ovary through the style (long neck between the stigma and ovary) called pollen tube.