A project manager is leading a team that includes both employees and contractors from different companies. The contractors are reluctant to share certain proprietary methodologies and tools that could benefit the project. What should the project manager do to address this situation?

Require contractors to share all methodologies and tools as part of their contract obligations

Accept the limitations and work around the contractors' proprietary constraints

Work with contractors to identify ways to share benefits of their methodologies without compromising their intellectual property

Replace contractors with employees who don't have intellectual property constraints