Match the items in Column $I$ with its main use listed in Column $II$.
Column $I$ Column $II$ $A$. Silica gel $i$. Transistor $B$. Silicon $ii$. Ion-exchanger $C$. Silicone $iii$. Drying agent $D$. Silicate $iv$. Sealant
| Column $I$ | Column $II$ |
|---|---|
| $A$. Silica gel | $i$. Transistor |
| $B$. Silicon | $ii$. Ion-exchanger |
| $C$. Silicone | $iii$. Drying agent |
| $D$. Silicate | $iv$. Sealant |
- A$A-iii, B-i, C-iv, D-ii$
- B$A-iv, B-i, C-ii, D-iii$
- C$A-ii, B-i, C-iv, D-iii$
- D$A-ii, B-iv, C-i, D-iii$
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