Embryo sac occurs in

Options

A. Embryo
B. Axis part of embryo
C. Ovule
D. Endosperm.

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Embryo Sac":**
- The embryo sac is a structure that serves as the female gametophyte in flowering plants. It is crucial for reproduction as it contains the egg cell.

2. **Location of the Embryo Sac:**
- The embryo sac is located within the ovule. The ovule is an integral part of the plant's reproductive system.

3. **Structure of the Ovule:**
- The ovule consists of several parts, including the nucellus, which is the tissue that surrounds the embryo sac. The embryo sac develops from the megasporangium.

4. **Formation Process:**
- The process through which the embryo sac is formed is known as megasporogenesis or megagametogenesis. This process involves the development of the megaspore into the embryo sac.

5. **Final Answer:**
- Therefore, the embryo sac occurs in the ovule of flowering plants.

**Final Answer: Embryo sac occurs in the ovule.**

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