Question: What is the expected outcome when the CatPowerOffCard function is successfully executed with a valid DeviceID, specifically DEVICE_CARD_READER_7?
Option 1: The terminal will receive a POWER ON CARD proactive command.
Option 2: The terminal will receive a POWER OFF CARD proactive command, and the proactiveCommandBuffer will match the powerOffCard buffer contents.
Option 3: The function will return an error due to parameter mismatch.
Option 4: The device will reboot without sending any proactive command.
Explanation: A successful CatPowerOffCard call with a valid DeviceID should result in sending a POWER OFF CARD proactive command to the terminal, with the sent command matching the expected powerOffCard buffer contents.