Statement A: True.AC generators are generally simpler in construction and more durable than DC generators.Statement B: True.Transformers can efficiently increase or decrease AC voltage.Statement C: True.AC can be stepped up to high voltages for transmission, allowing low current flow and minimizing $I^2R$ power losses.Statement D: False.AC is typically more dangerous than DC at the same voltage. For example, 220V AC has a peak value of about 311V, and AC frequencies (50–60 Hz) can interfere more severely with the human heart’s rhythm.The statement ”AC is less dangerous” is incorrect.