Answer:
c.Optional of
Explanation:
According to my research on different college structures, I can say that based on the information provided within the question the course entity of the college database would be optional of the department entity. This is because the college has many departments but only some offer courses, therefore the courses are dependant on if the department offers them or not (optional).
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D) that this difference in treatment should stop now
George Washington believed that the United States should have become involved in the rebellion in France in 1789.
Answer: Positive externality
Explanation: Positive externality is the concept in which the service produced and the consumption of that service will provide benefit a third party who is not a part of the process.
While producing fertilizer , it is providing a unintentional benefit to the community surrounding(third party) by keeping the insects away through exerting gases so that they don't cause insect bites or other problem.
Other options are incorrect because negative externalities are negative consequences face by the third party in a process. Comparative externality is related with comparison and pecuniary externality is increment or decrement in market price of service by action of economic actor .