Which of the following statements about the provision of public goods is true?
a. Public goods are generally provided by government because there are usually large external costs associated with them.
b. Public goods are generally provided by government because there are usually large external benefits associated with them.
c. Public goods are generally provided by government because they are very expensive to construct.
d. Public goods are generally provided by government because in the absence of government, there is no incentive for private industry to provide the good.
d. Public goods are generally provided by government because they are good for the public