What is a requirement for contractors before accepting a license?

The correct answer reflects that contractors must provide proof of financial responsibility before accepting a license. This requirement is essential because it ensures that contractors have the necessary financial backing to conduct their business, fulfill contracts, and manage potential liabilities. By requiring proof of financial responsibility, regulatory bodies seek to protect the public and clients by ensuring that contractors are capable of handling financial obligations related to their services. This helps mitigate risks involved in construction and contracting work, as it indicates that the contractor can cover costs such as project expenses, damages, or legal claims that may arise during the execution of their projects.

Other options may seem relevant but do not universally apply as prerequisites for obtaining a contractor's license. For instance, while completion of certification training and submission of personal background checks may be part of the licensing process depending on local regulations, they are not universally required across all jurisdictions. Similarly, agreeing to work only with licensed subcontractors is a best practice but does not constitute a direct requirement for licensing.