DevOps is not a standalone framework—it draws from several methodologies and frameworks to achieve its goals. PeopleCert emphasizes the integration of:

Agilefor iterative delivery, customer collaboration, and responsiveness

ITSMfor effective service delivery and operational stability

Leanfor waste elimination, flow optimization, and continuous improvement

WhileAlists relevant processes, they are subsets rather than foundational frameworks.Cdescribes cultural alignment but is not a set of frameworks.Dincludes valuable concepts but does not match the official trio highlighted in PeopleCert’s materials.

Thus,Bis correct.