A pilot modernization stalls because the team relied on prompt engineering skill alone. What is most likely missing?

The correct answer is the option emphasizing architecture, testing, and DevOps expertise to turn generated code into a deployable, verified service. Prompt engineering can get a first draft of Java, but without architectural design, a test strategy, and a deployment pipeline, that draft never becomes a working service. The larger-language-model option is incorrect because model capacity is rarely the constraint once generation is working; the gap is downstream. The option about adding more COBOL source files is incorrect because the tool works from the source already provided, not from additional volume. The faster-development-machine option is incorrect because hardware speed does not address the missing disciplines. For the exam, treat a stalled pilot as a skills-coverage problem before assuming it is a tooling problem.