2004 Honda Accord stutters during acceleration,

and a delay in response at highway speeds. had the 105,000 mile service damn near on the mark. it’s been well maintained as far as regular general maintenance. the dealer service manager is telling my cousin the Throttle BODY needs to be replaced. no mention of tps sincere or the app sincere. my research shows a significant difference price. should I try changing the sincere first or could it be the actual throttle body.