Advantage of cleistogamy is

Options

A. No dependence on pollinators
B. Vivipary
C. Higher genetic variability
D. More vigorous offspring

Answer

### Step-by-Step Solution:

1. **Understanding Cleistogamy**: Cleistogamy refers to a type of flower that remains closed and does not open for pollination. In these flowers, the anthers and stigma are positioned closely together.

2. **Pollination Process**: In cleistogamous flowers, when the anthers dehisce (release pollen), the pollen grains come into direct contact with the stigma without the need for external pollinators. This means that self-pollination occurs naturally within the closed flower.

3. **Advantages of Cleistogamy**:
- One of the primary advantages of cleistogamous flowers is that they do not depend on pollinators for reproduction. This ensures that pollination can occur even in the absence of insects or other animals that typically assist in the process.
- This leads to an assured seed set, meaning that the plant can produce seeds reliably without relying on external factors.

4. **Evaluating the Options**:
- **Option A**: No dependence on pollinators - This is correct as cleistogamous flowers can self-pollinate.
- **Option B**: Vivipary - This refers to giving birth to live young, which is not relevant to cleistogamy.
- **Option C**: Higher genetic variability - This is typically associated with sexual reproduction involving cross-pollination, not cleistogamy.
- **Option D**: More vigorous offspring - This is also a result of genetic variation from sexual reproduction, not applicable here.

5. **Conclusion**: The correct answer to the question regarding the advantage of cleistogamy is **Option A: No dependence on pollinators**.