Which of the following is most likely to discourage a surety from issuing a bond?

A surety's decision to issue a bond is heavily influenced by the perceived risk associated with the bond applicant. A lack of experience in the specific trade may raise concerns for the surety regarding the applicant's ability to successfully complete the project for which the bond is being sought. This lack of experience can lead to doubts about the applicant's knowledge, skill level, and overall execution capabilities, making them a higher risk for the surety.

In contrast, strong financial history and credit, a detailed project plan, and a track record of compliance with regulations are all indicators of reliability and competence. These factors provide assurance to the surety that the applicant is able to handle the obligations of the bond and minimize the risk of defaults. Therefore, while the other choices indicate positive attributes that would encourage a surety to issue a bond, a lack of experience can significantly deter them from proceeding.