Which of the following is a valid reason for the government to utilize its eminent domain power? (a) The town council wishes to sell land containing a closed government office building. (b) The city council has decided that it would prefer that a developer tear down historic homes, and replace them with a private condominium complex. (c) The government has decided to build a new shopping center in conjunction with a private developer. (d) The government has decided to build a new interstate highway by-pass of the city to help move traffic more quickly.