Policymakers are discussing various proposals regarding how to deal with natural monopolies. Senator Huff wants to regulate natural monopolies by equating price with average total cost. Huff contends that such a policy will ensure that monopolies make every effort to reduce costs. Senator Puff wants the government to own natural monopolies. Puff argues that government-owned monopolies usually do a better job of holding down costs than privately owned monopolies. Which senator's argument is correct?

a. Senator Huff
b. Senator Puff
c. both senators
d. neither senator