A city street is Select one: a. a public good when it is congested, but it is a common resource when it is not congested. b. always a common resource, whether or not it is congested. c. always a public good, whether or not it is congested. d. a common resource when it is congested, but it is a public good when it is not congested.

D. a common resource when it is congested, but it is a public good when it is not congested.

Explanation: A public good is a good that individuals cannot be excluded from its use and the use of it by one individual does not reduce its availability to others while a common resource is a resource which no individual can be excluded from using, but it's availability may be subject to rivalry.

Therefore during congestions, a city street is a common resource as availability for use is limited and a public good when it is not congested as there's both access and availability for use.

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the correct answer is :

{b.}   ( american workers lose job opportunities )

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