The pesticide used as preventive measure in buildings is

Options

A. Aldrin
B. Dieldrin
C. Endrin
D. DDT

Explanation

**Step-by-Step Solution:**

1. **Identify the Purpose of Pesticides in Buildings:**
- Pesticides are used in buildings primarily to prevent damage caused by pests, particularly wood-destroying insects like termites.

2. **Recognize Common Pests:**
- Termites are the most significant pests that damage wooden structures and furniture. They can cause substantial damage if not controlled.

3. **List Common Pesticides:**
- The video mentions several pesticides: Aldrin, Dieldrin, Endrin, and DDT.

4. **Determine the Specific Use of Each Pesticide:**
- Among the listed pesticides, Aldrin is specifically noted as an organic chlorine insecticide that is widely used as an anti-termite chemical.

5. **Select the Correct Answer:**
- Based on the information provided, Aldrin is the pesticide used as a preventive measure in buildings against termites. Therefore, the correct answer is Aldrin.

**Final Answer:**
The pesticide used as a preventive measure in buildings is Aldrin.

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