One of the following plants have contributed to coal formation

Options

A. Pteridophytes
B. Gymnosperms
C. Bacteria
D. Archaebacteria

Explanation

**Step-by-Step Solution:**

1. **Understanding Coal Formation**: Coal is a fossil fuel that forms from the remains of ancient plants that have been subjected to heat and pressure over millions of years.

2. **Identifying the Plants Involved**: The plants that primarily contribute to coal formation are those that existed in swampy, low-oxygen environments where their remains could accumulate without decomposing completely.

3. **Considering the Options**: The options given are:
- Teridophytes
- Gymnosperms
- Bacteria
- Archaebacteria

4. **Analyzing Each Option**:
- **Teridophytes**: These are vascular plants that reproduce via spores, including ferns and mosses. They thrived in the Carboniferous period and contributed significantly to coal deposits.
- **Gymnosperms**: These are seed-producing plants like conifers. While they also contribute to coal formation, they are not the primary contributors.
- **Bacteria and Archaebacteria**: These are microorganisms and do not contribute directly to coal formation.

5. **Conclusion**: Based on the analysis, teridophytes are the primary plants that contributed to coal formation due to their abundance and the conditions under which they lived.

6. **Final Answer**: The correct answer is **teridophytes**.

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