<Ul> <Li> General obligation bonds promise to repay based on the full faith and credit of the issuer; these bonds are typically considered the most secure type of municipal bond, and therefore carry the lowest interest rate . </Li> <Li> Revenue bonds promise repayment from a specified stream of future income, such as income generated by a water utility from payments by customers . </Li> <Li> Assessment bonds promise repayment based on property tax assessments of properties located within the issuer's boundaries . </Li> </Ul> <Li> General obligation bonds promise to repay based on the full faith and credit of the issuer; these bonds are typically considered the most secure type of municipal bond, and therefore carry the lowest interest rate . </Li> <Li> Revenue bonds promise repayment from a specified stream of future income, such as income generated by a water utility from payments by customers . </Li> <Li> Assessment bonds promise repayment based on property tax assessments of properties located within the issuer's boundaries . </Li>

Which of the following is an attribute of general obligation bonds