Agent improvement is iterative: benchmark, collect feedback, tune, regress-test, repeat. Monitoring token speed alone misses reasoning quality and task completion. The architecture implied by Option B is the one that survives real workloads: separate responsibilities, explicit contracts, and measurable runtime behavior. The selected option specifically B states “Implementing benchmarking pipelines, collecting user feedback, and tuning model parameters iteratively”, which matches the operational requirement rather than a superficial wording match. The correct implementation surface is trajectory-level evaluation, distributed tracing, task-completion metrics, latency breakdowns, and regression gates. In NVIDIA terms, NeMo Evaluator and agentic metrics focus on trajectories and goal completion, not only the fluency of the last response. The distractors fail because manual spot checks are useful but cannot replace regression tests across query classes, temporal drift, and tool failure modes. This choice gives engineering teams the knobs they need for continuous tuning after deployment. A strong evaluation setup must preserve both the trajectory and the final outcome so optimization does not improve one metric while damaging another.