Medium
The gold numbers of $A, B, C$ and $D$ are $0.04, 0.002, 10$ and $25$ respectively. The protective power of $A, B, C$ and $D$ are in the order:
- A$A > B > C > D$
- B$B > A > C > D$
- C$D > C > B > A$
- D$C > A > B > D$
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