Answer:
National parks and ground water
Step-by-step explanation:
In the given choices example of commons are national park and ground water. 'Commons' means public goods, which can be used by every person of the country. And such things are state owned. Use of ground water is a human right. Public goods can be used by everybody without discrimination such as:- rich- poor, male-female, etc. On the other hand private things are owned by an individual.