In a CSCR motor with a potential relay, the start winding is energized when the relay contacts open.

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Capacitor Start Capacitor Run motors use a potential relay to control the starting winding. The relay senses current in the main winding and, when starting, its coil is energized in such a way that the relay contacts are in the state that routes current through the start winding (with the capacitor). In this arrangement, opening the contacts changes the circuit so the start winding receives current and provides the necessary phase shift for starting torque. As the motor accelerates and line current falls, the relay de-energizes and the contacts switch back, removing the start winding from the circuit. So the start winding is energized when the relay contacts are in the open state, which is why this option is correct.