The correct answer is A. The tension in a cable supporting a lift is more when the lift is moving downwards.
When the lift is moving downwards, the force of gravity is pulling the lift down. The cable must therefore exert an upward force on the lift to counteract the force of gravity. This upward force is the tension in the cable. The tension in the cable is therefore greater when the lift is moving downwards than when it is moving upwards.
Option B is incorrect because the tension in the cable is greater when the lift is moving downwards. Option C is incorrect because the tension in the cable is not constant whether the lift is moving downwards or upwards. Option D is incorrect because the tension in the cable is greater when the lift is moving downwards.