The "Plan the Release" process goal in Disciplined Agile is most likely to offer potential techniques for providing a cost estimate for the project while recognizing that requirements will evolve over time. This goal involves determining the scope of the release, estimating the effort and cost, and planning for future iterations.
It accounts for the fact that Agile teams work in environments of uncertainty and helps them create realistic plans that can adapt as requirements change. Options A (Project Management), C (Explore Scope), and D (Address Changing Stakeholder Needs) are relevant for Agile projects, but "Plan the Release" specifically focuses on creating estimates and planning in an Agile context.