Consider the Adjacent Work Stations in This Two Card Kanban

Multiple Choice

Consider the adjacent work stations in this two card kanban system. Work Center 3 has just pulled the Incoming Parts C box to their work station. Plant manager Taichi Ohno grabs the microphone for the company PA system and announces that effective immediately, the company will switch to a one card system. Which of these actions is appropriate?

A) The production card will be discarded and the empty container will function as a production signal.
B) The production card will be discarded and the empty container will function as a move signal.
C) Both the move and production cards will be discarded in favor of a combined move/production card.
D) The production card will be discarded as production will be implied and the move cards will signal when items are needed downstream.