
- A200Hz
- B220Hz
- C225.08Hz
- D230Hz

Explanation:
The resonant frequecy of a circuit is given by $\text{f}=\frac{1}{2\pi\sqrt{\text{LC}}}$
Given $\text{L}=0.1\text{H }\text{C}=5\mu\text{F }\text{R}=5\Omega$
Substituting them in formula for f gives
f = 225.08 Hz.
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