Knowledge is a public good par excellence" in that it is: Group of answer choices common pool resource, rival, excludable, durable, high cost to use, and so charge for using private good, rival, excludable, durable, no cost to use, and so no charge for using public good, non-rival, non-excludable, durable, no cost to use, and so no charge for using quasi-public good, non-rival, non-excludable, durable, high cost to use, and so charge for using