The relation between the permittivity of free space $(\epsilon_0)$, the permeability of free space $(\mu_0)$, and the speed of light $(c)$ is:
- A$\epsilon_0 \mu_0 = \frac{4 \pi}{c^2}$
- B$\epsilon_0 \mu_0 = \frac{1}{c^2}$
- C$\epsilon_0 \mu_0 = \frac{1}{c}$
- D$\epsilon_0 \mu_0 = c^2$
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