A \( \frac{1}{(\mathrm{ek})} \)
B \( \frac{\mathrm{k}}{\mathrm{e}} \)
C ek
D \( \frac{\mathrm{e}}{\mathrm{k}} \)
E \( \frac{2}{(\mathrm{ek})} \)
Correct Answer: Option A
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