**Embryo in Sunflower has Two Cotyledons**

The answer to the question is option 'B', which states that the embryo in a sunflower has two cotyledons.

**What are Cotyledons?**

Cotyledons are the seed leaves present in the embryo of a plant. They are part of the seed and serve as the primary source of nutrients for the developing plant before it starts photosynthesis. Cotyledons can vary in number depending on the plant species.

**Cotyledons in Sunflower**

Sunflowers (Helianthus annuus) are dicot plants, belonging to the Asteraceae family. Dicot plants typically have two cotyledons in their embryos, making them a characteristic feature of this plant group.

**Dicot vs Monocot Plants**

Understanding the difference between dicot and monocot plants is essential to explain why sunflowers have two cotyledons.

- Dicot Plants:
Dicot plants, also known as dicotyledonous plants, have embryos with two cotyledons. Examples of dicot plants include sunflowers, roses, tomatoes, and beans. Dicot plants usually have net-like veins on their leaves, flower parts in multiples of four or five, and a taproot system.

- Monocot Plants:
Monocot plants, also known as monocotyledonous plants, have embryos with a single cotyledon. Examples of monocot plants include grasses, lilies, orchids, and palms. Monocot plants typically have parallel veins on their leaves, flower parts in multiples of three, and a fibrous root system.

**Conclusion**

In conclusion, sunflowers belong to the dicot plant group and have two cotyledons in their embryos. These cotyledons provide the initial nutrients to the developing plant until it can establish its own photosynthetic capabilities. Understanding the characteristics of dicot and monocot plants helps differentiate the number of cotyledons present in their embryos.