This is a lifecycle problem, not a wording problem, and Option C gives the team a controllable lifecycle for the agent behavior. Empty responses under load usually point to server-side failures: OOM, queue exhaustion, or inference errors. GPU memory and server logs are the right signal. The implementation detail that matters is a tool boundary where every API has declared inputs, declared outputs, validation, retry behavior, and instrumentation. The selected option specifically C states "GPU memory utilization and server-side inference logs", which matches the operational requirement rather than a superficial wording match. The alternatives would look simpler in a prototype, but relying on the model to infer API behavior invites fabricated endpoints, malformed arguments, and brittle production behavior. For a production build, NVIDIA's agent tooling favors explicit function specifications and observable execution paths instead of free-form API narration in the prompt. That is the difference between an agent that works in a notebook and an agent that remains reliable in production.