Match the items given in Column I with the items given in Column II.
| Column I | Column II |
| A. Mg in solid state | 1. p-type semiconductor |
| B. MgCl2 in molten state | 2. n-type semiconductor |
| C. Silicon with phosphorus | 3. Electrolytic conductors |
| D. Germanium with boron | 4. Electronic conductors |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 2 | 1 |
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