A \( m=1+\frac{D}{F} \)
B \( m=\frac{V_{0}}{U_{0}}\left(1 + \frac{D}{f_{e}}\right) \)
C \( m=f_{0}\left(\frac{1}{D} + \frac{1}{f_{e}}\right) \)
D \( m=\frac{1}{f_{0}}\left(\frac{1}{D} + \frac{1}{f_{e}}\right) \)
Correct Answer: Option C
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