The correct answer is A) check the supply line phase sequence and motor rotation with appropriate indicators, then connect correspondingly marked leads. This is the correct answer because it is important to ensure the proper rotation of the motor to prevent possible damage to the load. Checking the supply line phase sequence and motor rotation with appropriate indicators, then connecting the correspondingly marked leads, ensures the motor will rotate in the correct direction. This is a standard procedure recommended to prevent issues when reconnecting a three-phase induction motor. The other options are incorrect because they do not adequately address the need to verify the phase sequence and motor rotation before making the connections. Options B, C, and D do not provide a reliable method for determining the proper phase sequence and rotation direction prior to connecting the motor.