The correct answer isC. Thechoice of architecture(e.g., neural networks vs. decision trees) is typically part of thedesign and developmentphase, not the initial planning.

From the AIGP Body of Knowledge – AI Lifecycle Module:

“Planning involves scoping, context definition, stakeholder identification, governance planning, and assumptions—not yet model selection.”

Confirmed in the ILT Participant Guide:

“Design decisions such as architecture or algorithm type come after planning—usually during development based on technical feasibility and data availability.”