The indicating-light circle, which is normally drawn to a smaller scale compared to a ____________ ____________ symbol in a ladder diagram, is further identified with four short ________ _________ drawn at a diagonal of outside the circle.
A) voltage solenoid; hash marks
B) none of the answers
C) voltage solenoid; voltage solenoid
D) hash marks; hash marks
Share your understanding of this question with the correct explanation.