The operating characteristics of a reactance type distance relay
(A) a stepped waveform for increasing reactance
(B) a straight line for a constant reactance
(C) a circle for a constant reactance
(D) a set of circles for variable reactances
(A) a stepped waveform for increasing reactance
(B) a straight line for a constant reactance
(C) a circle for a constant reactance
(D) a set of circles for variable reactances