Which of the following represent the male gametophyte in flowering plants?

Options

A. stamen
B. anther
C. pollen sac
D. pollen grain

Answer

To determine which of the following represents the male gametophyte in flowering plants, we need to understand the structure and function of the male reproductive parts of the flower.

### Step-by-Step Solution:

1. **Understanding Male Gametophyte**:
- The male gametophyte in flowering plants is the structure that produces male gametes (sperm cells). It is haploid (N), meaning it contains half the number of chromosomes.

2. **Identifying the Male Reproductive Parts**:
- In flowering plants, the male reproductive part is called the stamen, which consists of two main parts: the anther and the filament.

3. **Role of the Anther**:
- The anther is the part of the stamen that produces pollen grains. It is a holding structure for the male gametes.

4. **Pollen Grains**:
- Pollen grains are produced within the anther and are the actual male gametophytes. Each pollen grain contains the male gametes (sperm cells) and is haploid (N).

5. **Conclusion**:
- Therefore, the correct answer to the question is that the male gametophyte in flowering plants is represented by the pollen grain.

### Final Answer:
The male gametophyte in flowering plants is represented by the **pollen grain**.

---