One of the tallest species is

Options

A. Pinus
B. Sequoia
C. Cycas
D. Cedrus

Answer

To determine which of the given species is one of the tallest, we need to analyze each option based on their average heights. The options provided are Pinus, Sequoia, Cycus, and Cedrus.

### Step-by-Step Solution:

1. **Identify the Species**:
- The options given are:
- A) Pinus
- B) Sequoia
- C) Cycus
- D) Cedrus

2. **Research Average Heights**:
- **Pinus**: This is an evergreen coniferous tree that can reach heights of 15 to 45 meters.
- **Sequoia**: Known as the giant redwood, its average height ranges from 50 to 85 meters, with some individuals reaching up to 115 meters.
- **Cycus**: These are dioecious plants with a maximum height of about 16.1 meters.
- **Cedrus**: This species can grow to an average height of 30 to 40 meters.

3. **Compare Heights**:
- From the heights mentioned:
- Pinus: 15 to 45 meters
- Sequoia: 50 to 115 meters
- Cycus: 16.1 meters
- Cedrus: 30 to 40 meters
- Clearly, the Sequoia has the highest average height compared to the other options.

4. **Conclusion**:
- Based on the analysis, the tallest species among the options provided is **Sequoia**.

### Final Answer:
- The correct answer is **Sequoia** (Option B).