The correct answer is $\boxed{\text{None of the above}}$.
The dimensions of L/CR are that of time. This can be seen by considering the following equation:
$$L\frac{di}{dt} = -CRV$$
where $L$ is the inductance, $C$ is the capacitance, $R$ is the resistance, $i$ is the current, and $V$ is the voltage.
If we divide both sides of this equation by $C$, we get:
$$\frac{L}{C}\frac{di}{dt} = -RV$$
The left-hand side of this equation has the dimensions of time, since it is the ratio of two quantities with dimensions of inductance and capacitance. The right-hand side of this equation has the dimensions of voltage, since it is the product of a quantity with dimensions of resistance and a quantity with dimensions of current. Therefore, the dimensions of L/CR must be time.
Option A, Farad, is the unit of capacitance. Option B, Henry, is the unit of inductance. Option C, Ohm, is the unit of resistance. None of these units are time.