Geitonogamy is:

Options

A. Pollination between two flowers of the same plant .
B. Pollination between two flowers of two different plants.
C. Pollination between two flowers of two genetically dissimilar plants.
D. Option (a) and (c)

Explanation

**Step-by-Step Solution:**

1. **Understanding Geitonogamy**: Geitonogamy is a specific type of pollination. It is important to recognize that it involves the transfer of pollen from one flower to another flower.

2. **Identifying the Source of Pollen**: In geitonogamy, the pollen comes from the same plant. This means that the two flowers involved in the pollination process are on the same individual plant.

3. **Differentiating from Other Types of Pollination**: It is crucial to differentiate geitonogamy from other forms of pollination. For instance, if the pollen were to come from a different plant, it would not be classified as geitonogamy. Instead, it would be considered cross-pollination.

4. **Conclusion**: Based on the definition and characteristics of geitonogamy, the correct answer to the question is that geitonogamy is the pollination between two flowers of the same plant.

5. **Final Answer**: Therefore, the correct option is: "There is a pollination between the two flowers of the same plant."

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