Which mechanism allows the Sodium-Potassium Ion Pump to function as an antiport?

• A. It transports sodium ions into the cell and potassium ions out of the cell.
• B. It transports both sodium and potassium ions into the cell.
• C. It transports sodium ions out of the cell and potassium ions into the cell.
• D. It transports both sodium and potassium ions out of the cell.

Answer: (C)