Final answer:
A municipal bond issue secured by the income from a bridge or toll road is known as a revenue bond issue, which is backed by project-specific revenues.
Step-by-step explanation:
A municipal bond issue secured by the income from a bridge or toll road is called a d. revenue bond issue. Unlike general obligation bonds that are backed by the taxing power of the issuing authority, revenue bonds are issued for specific projects and are backed solely by the revenues from that project.
In the case of a bridge or toll road, the money collected from tolls would be used to pay back the bondholders. Municipal bonds, in general, are a way for cities to raise capital. These bonds are a financial contract through which a borrower agrees to repay the amount borrowed with interest over a future period.