In how many forms did the earlier Indian philosophers classify matter?

Options

A. 2
B. 6
C. 7
D. 5

Explanation

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks how many forms the earlier Indian philosophers classified matter into.

2. **Recall the Classification**: The earlier Indian philosophers classified matter into five distinct forms.

3. **List the Five Forms**: The five forms of matter as classified by Indian philosophers are:
- Earth
- Air
- Sky (often referred to as Space or Ether)
- Fire
- Water

4. **Conclusion**: Therefore, the answer to the question is that earlier Indian philosophers classified matter into **5 forms**.

---