An aggregate fruit is one which develops from

Options

A. Multicarpellary superior ovary
B. Multicarpellary syncarpous gynoecium
C. Multicarpellary apocarpus gynoecium
D. Complete inflorescence

Answer

### Step-by-Step Solution

1. **Definition of Aggregate Fruit**: An aggregate fruit is a type of fruit that develops from multiple ovaries of a single flower. This means that instead of forming from just one ovary, the fruit arises from several ovaries that are part of the same flower.

2. **Formation Process**: During the development of an aggregate fruit, the multiple ovaries come together or "aggregate" to form a single fruit structure. This aggregation is the key characteristic that distinguishes aggregate fruits from other types of fruits.

3. **Comparison with Simple Fruits**: In contrast, a simple fruit develops from a single ovary of a flower. This distinction is important because it helps in understanding the different types of fruit formations in flowering plants.

4. **Gynosium Structure**: The gynosium is the female reproductive part of the flower, which consists of one or more carpels. Each carpel contains an ovary, and in the case of aggregate fruits, multiple carpels are involved.

5. **Types of Carpels**: The carpels can be classified as either syncarpous or apocarpous. In syncarpous gynosium, the carpels are fused together, while in apocarpous gynosium, they remain separate. Aggregate fruits typically arise from a syncarpous gynosium, where the carpels are free but still belong to the same flower.

6. **Conclusion**: Therefore, an aggregate fruit is one that develops from a multi-carpellate (multi-carpal) syncarpous gynosium, where multiple ovaries from a single flower aggregate to form the fruit.