A sinusoidal voltage of 1 V peak is applied at the input of an amplifier which operates at ± 12 V power supplies. A sinusoidal voltage of 10 V peak is available across a 1 kΩ load at the output of the amplifier. The input current to the amplifier from the sinusoidal source is negligible. If the amplifier draws a current of 10 mA from each of the two power supplies, the power dissipated in the amplifier is

• A. 50 mW
• B. 140 mW
• C. 190 mW
• D. 240 mW