John reports dizziness and unsteadiness when walking, especially in busy environments or when turning his head quickly. He denies positional dizziness but struggles to read signs while walking. Examination reveals normal balance in static postures and no spontaneous nystagmus. Which test is MOST appropriate to assess the suspected deficit?

A) Dix-Hallpike maneuver

B) Head thrust test

C) Snellen Chart Reading while walking

D) Romberg test

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