Answer:
B. one characterized by nonrivalry and nonexcludability.
Explanation:
Quasi-Public good is considered as the goods which characterized by the both private and public goods e.g Roads, bridges etc. These goods have incompetent market and it lacks the existence of free market. These goods are non-rivalry and non-excludability. So option B is the appropriate answer for this question.
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There are a lot of reasons in buying a certain a product and sometimes we buy things which are not really necessary. One great example for emotional consumer motive in when we buy food because we need them to survive in this world.