Because Rosaeceae contains all conditions of hypogyonous ,perigynus,epigynous

The correct answer is option 'A' - Rosaceae.

Explanation:
The family Rosaceae is a large family of flowering plants that includes many familiar species such as roses, strawberries, apples, and cherries. It is known for its diverse range of flower structures and growth habits. Within the Rosaceae family, all three conditions - hypogynous, perigynous, and epigynous - can be found.

1. Hypogynous Condition:
In the hypogynous condition, the gynoecium (female reproductive part) is superior to other floral parts including the sepals and petals. This means that the ovary is positioned above the attachment point of other floral organs. In Rosaceae, some examples of flowers with a hypogynous condition are roses (Rosa spp.) and strawberries (Fragaria spp.). In these flowers, the ovary is situated at the top of the receptacle, and the sepals, petals, and stamens are attached below it.

2. Perigynous Condition:
In the perigynous condition, the gynoecium is partially inferior, and the sepals, petals, and stamens are attached to an elongated floral tube called the hypanthium. The ovary is positioned within this hypanthium. In Rosaceae, the perigynous condition can be observed in flowers such as apples (Malus spp.) and cherries (Prunus spp.). In these flowers, the ovary is located within the cup-shaped hypanthium, and the sepals, petals, and stamens are attached to the top of the hypanthium.

3. Epigynous Condition:
In the epigynous condition, the gynoecium is inferior to the attachment point of other floral parts. The ovary is positioned below the attachment point, and the sepals, petals, and stamens appear to arise from the top of the ovary. While the epigynous condition is not as common in Rosaceae, it can be observed in some species. For example, in the flower of the genus Agrimonia, the ovary is positioned below the attachment point of other floral organs.

In summary, the family Rosaceae exhibits all three conditions - hypogynous, perigynous, and epigynous - in different species within the family. This diversity of floral structures is one of the reasons why Rosaceae is such a diverse and successful plant family.