Optional Chain Group Boundary Readback

Use [JavaScript expression], [nullable input fixtures] and [runtime version]. Produce a 50-second code-review handoff reading both supplied expressions carefully and explaining which access is outside the optional chain. Clearly identify any behavior not executed in the named runtime.

Use only the supplied facts and approved wording. If a necessary script or timing reference is missing, ask for it first. Produce the audio when supported; otherwise return the complete spoken script with pauses and a short production cue sheet, clearly labeled as a script. Use original voices and keep speech intelligible without music. Never claim an audio file exists unless it was generated.