C.19.2:4.2 - Select the truthful application branch
One current apparatus. When one direct-kind apparatus is already selected and still has a credible path to the declared result and guarantee, create no OptionSet and no ChoiceResult. Compare the smallest next adaptation/configuration work with the useful-result threshold, plan when needed, perform the work, and inspect the result.
Candidate generation or reframing. If no adequate current object is available, use C.39 to develop a missing explanation of how to obtain the result, or C.40 to vary usable material and examine the difference. Use C.18 when generation-account or archive/front claims are needed. The declared use and eligibility basis can guide that work.
Local choice. Only when two or more already-available eligible alternatives, or another genuine local-choice question over a live set, are current, use C.11 for OptionSet, ChoiceRule, probing, and ChoiceResult.
Post-choice enactment. For a singular selected direct-kind object, use A.15.2 to plan its application when a plan is needed and A.15.1 for the dated application Work. C.24 is the pattern for sequencing, budgeting, checkpointing, and replanning only when the application involves tool-call work.