The is responsible for monitoring and maintaining the interstate highway system. a. office of planes, trains, and automobiles b. department of labor c. department of transportation d. office of budget and management

C Department of Transportation

The correct answer should be C. Department of Transportation

They are in charge of all interstate travelling which includes maintaining the highway system. Option A deals with the vehicles themselves while department of labor deals with workers. Budget and Management deals with providing finances for projects. They all participate in one way or another in the highway business, but the main is the Department of Transportation.

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