Which of the following pairs has quantities of the same dimensions?
| (a) | The magnetic field \(B\) and magnetizing field intensity \(H.\) |
| (b) | The magnetic field \(B\) and intensity of magnetization \(I.\) |
| (c) | The magnetizing field intensity \(H\) and intensity of magnetization \(I.\) |
| (d) | The longitudinal strain and magnetic susceptibility. |
Choose the correct option from the given ones:
1. (a) and (b) only
2. (b) and (c) only
3. (c) and (d) only
4. (a) and (d) only