Answer: The correct answer is 'to keep in good condition by regularly checking and repairing'
Explanation: The phrase 'to take care of' is used to refer to diligently keeping a thing or situation in a perfect state to prevent damage or destruction.
In caring for a thing, repairs and regular checks are often done. For example, to take care of one's health involves regular medical check up inorder to address any health challenge that may occur. Cars can also be taken care of by periodic maintenance and fixing damages before it gets really bad.