Which part of the cotyledon grows rapidly in epigeal germination?

Explanation

**Step-by-Step Solution:**

1. **Understanding Epigeal Germination**:
- Epigeal germination is a type of seed germination where the cotyledons (seed leaves) are raised above the soil surface.

2. **Identifying the Parts of the Cotyledon**:
- The cotyledon consists of two main parts: the hypocotyl (the part of the stem below the cotyledons) and the epicotyl (the part of the stem above the cotyledons).

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