Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:
Autogamy
Xenogamy
Geitonogamy
Karyogamy
When the pollen grains are transferred from the anther of one flower to the stigma of another plant of the same plant, it is called geitonogamy. Functionally it is cross pollination as it requires pollinators but genetically the it is similar to the autogamy. Thus, the correct answer is option c.