A \( 2.5 \times 10^6 \text{ Å} \)
B \( 2.5 \times 10^5 \text{ Å} \)
C \( 2.5 \times 10^4 \text{ Å} \)
D \( 2.5 \times 10^3 \text{ Å} \)
Correct Answer: Option A
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