Which statement correctly describes cross-pollination?
- Athe transfer of pollen grains from the anther of one plant to the stigma on a different plant
- Bthe transfer of pollen grains from the anther to the stigma on the same plant
- Cthe transfer of pollen grains from the stigma of one plant to the anther on a different plant
- Dthe transfer of pollen grains from the stigma to the anther on the same plant