Look at the picture given below and think in line with the given prompts and find out which type(s) of pollination might have been followed in these flowers.

Tomato: The stamens cover the stigma, making it easier for pollen to fall on the stigma of the same flower. Therefore, self-pollination is most likely to occur.

Wheat: The flowers open only after pollination has already taken place, which prevents pollen transfer from another flower. Hence, self-pollination occurs in wheat.

Papaya: Male and female flowers are usually present on different papaya plants. Therefore, pollen must be transferred from one plant to another, resulting in cross-pollination.