Sexual reproduction in plants — practice question

Which statement concerning pollination in plants is correct?

• ACross-pollination is the transfer of pollen from the anther of a flower to the style of the same flower.
• BCross-pollination is the transfer of pollen from the anther of a flower to the stigma of a flower on a different plant of the same species.
• CSelf-pollination is the transfer of pollen from the anther of a flower to the filament of the same flower.
• DSelf-pollination is the transfer of pollen from the anther of a flower to the stigma of a flower on a different plant.