Match the following positive and their respective negative charge developed on rubbing.
| Column I | Column II |
| A. Glass rod | 1. Rubber shoes |
| B. Flannel or cat skin | 2. Silk cloth |
| C.Woollen cloth | 3. Ebonite rod |
| D.Woollen carpet | 4. Amber rod |
1
A - 2, B - 3, C - 4, D -1
2
A- 3, B - 2, C - 1, D - 4
3
A- 4, B - 1, C - 3, D- 2
4
A - 1, B - 4, C - 2, D- 3