The correct answer is: C. higher than that of if fault occurs away from the relay.
The VII ratio is a measure of the impedance of a fault. The higher the VII ratio, the greater the impedance of the fault. When a fault occurs near the impedance relay, the VII ratio will be higher than that of if fault occurs away from the relay. This is because the fault current will be higher when the fault is closer to the relay. The higher fault current will cause a higher voltage drop across the relay, which will result in a higher VII ratio.
Option A is incorrect because the VII ratio is not constant for all distances. The VII ratio will be higher when the fault is closer to the relay.
Option B is incorrect because the VII ratio will be higher when the fault is closer to the relay.
Option D is incorrect because the VII ratio is not none of the above. The VII ratio is a measure of the impedance of a fault, and the VII ratio will be higher when the fault is closer to the relay.