____ are used to provide a visual indication for an operator to verify that a certain operation is either energized or de-energized.

A) Indicator Lamps
B) Timing Relays
C) Ladder Rungs
D) Thermal Overloads

Indicator lamps are specifically designed to provide a visual indication for an operator to verify the status of an operation, whether it is energized or de-energized. Timing relays are used to control the time delay of an operation, ladder rungs are components of a ladder logic diagram, and thermal overloads are designed to protect motor circuits from overloads.