You Are Troubleshooting a Laptop with Multiple Sticking Keys That

You are troubleshooting a laptop with multiple sticking keys that result in misspelled words while the user types. Other than several sticking keys, the laptop appears to be functioning properly. You have cleaned the keyboard with compressed air, but the problem persists. After removing one of the key tops, it becomes apparent that a liquid was spilled into the keyboard.
Which of the following is the next step in resolving the issue of sticking keys?

A) Replace the keyboard with a compatible keyboard.
B) Disconnect and reseat the keyboard ribbon cable.
C) Clean the keyboard keys with a contact cleaner.
D) Replace the laptop system board and reseat all connections.