From among the sets of terms given below, identify those that are associated with the gynoecium.

Options

A. Stigma, ovule, embryosac, placenta
B. Thalamus, pistil, style, ovule
C. Ovule, ovary, embryosac, Tapetum
D. Ovule, stamen, ovary, embryosac

Answer

To identify the terms associated with the gynoecium, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Gynoecium**: The gynoecium is the female reproductive part of a flower. It consists of one or more carpels (also known as pistils).

2. **Identify Components of Gynoecium**:
- **Carpels/Pistils**: The basic units of the gynoecium.
- **Stigma**: The sticky tip of the pistil that captures pollen grains.
- **Style**: The tubular structure that connects the stigma to the ovary.
- **Ovary**: The swollen base of the pistil that contains ovules.
- **Ovule**: The structure within the ovary that develops into seeds after fertilization.
- **Embryo Sac**: The haploid structure within the ovule that contains the egg apparatus.
- **Placenta**: The tissue within the ovary that bears the ovules.

3. **List Terms Associated with Gynoecium**: Based on the definitions and components identified, the terms associated with the gynoecium include:
- Stigma
- Style
- Ovary
- Ovule
- Embryo Sac
- Placenta

4. **Exclude Non-Gynoecium Terms**: Terms such as thalamus (the base of the flower), tapetum (nutritive tissue in anther), and stamen (male reproductive part) are not associated with the gynoecium.

5. **Final Identification**: The terms that are specifically associated with the gynoecium are:
- Stigma
- Style
- Ovary
- Ovule
- Embryo Sac
- Placenta

### Conclusion:
The correct terms associated with the gynoecium are **stigma, ovule, embryo sac, and placenta**.