Sten tendrils occur in

Options

A. Smilax
B. Gloriosa
C. Vitis
D. Lathyrus

Answer

### Step-by-Step Solution:

1. **Understanding Stem Tendrils**:
- Stem tendrils are modified structures that develop from axillary buds. They are thin, thread-like, and leafy in nature.

2. **Function of Tendrils**:
- The primary function of these tendrils is to provide support to weak stems or shoots of other plants. They coil around these weak structures to help them stand upright.

3. **Analyzing the Options**:
- The options given are:
- A) Smilax
- B) Gloriosa
- C) Vitis
- D) Lathyrus

4. **Identifying the Correct Plant**:
- Among the options, only **Vitis vinifera** (commonly known as grapevine) is known to have stem tendrils. These tendrils are modified lateral shoots that coil around other plants for support.

5. **Conclusion**:
- Therefore, the correct answer to the question "Sten tendrils occur in" is **C) Vitis**.