Theprimary objective of closureis totransition to maintenance and sustainabilityactivities, ensuring the change becomes part of everyday operations. ACMP explains that this involves transferring ownership to operational leaders, embedding reinforcement mechanisms, and releasing resources. Assessing capacity (B) and preparing for continuous improvement (C) are useful lessons learned, but they are not the closure objective. Revising targets (D) is a tactical step, not a closure requirement. Option A is the correct answer.
(Reference: ACMP Standard, Process Group 5 - Close; Objective: Transition ownership to sustain adoption and benefits.)