In Lycopodium the leaves are

Options

A. Eligulate
B. Ligulate
C. Megaphyllous
D. Both B and C.

Answer

### Step-by-Step Solution:

1. **Understanding Lycopodium**:
- Lycopodium is a genus of plants belonging to the group known as pteridophytes. These are vascular plants that reproduce via spores rather than seeds.

2. **Identifying Leaf Characteristics**:
- The leaves of Lycopodium are described as needle-shaped. This is an important characteristic that helps in identifying the plant.

3. **Leaf Arrangement**:
- The leaves of Lycopodium are arranged in such a way that they cover the entire stem. This type of leaf arrangement is known as "Aligulate".

4. **Evaluating the Options**:
- **Option A (Aligulate)**: This is correct because the needle-shaped leaves do cover the entire stem.
- **Option B (Ligulate)**: This is incorrect as Ligulate leaves do not cover the stem entirely.
- **Option C (Megaphyllous)**: This is also incorrect because Megaphyllous refers to large leaves, which does not apply to Lycopodium.
- **Option D (Both B and C)**: This option is incorrect since both B and C are wrong.

5. **Conclusion**:
- The correct answer is **Option A (Aligulate)**, as the leaves of Lycopodium are needle-shaped and cover the entire stem.