listEning 2 "Art historyClAss" {$mEDiAurl} why DoEs thE proFEssor mEntion thAt hE ChECkED sEvErAl rEFErEnCEs ABout thE lEngth oF quEEn louisE’sBAllEt . A、hE wAs vEry intErEstED in thE BAllEt. B、hE DiD not know muCh ABout it. C、hE wAsn’t surE thAt it wAs ACCurAtE. D、hE wAntED to imprEss thE ClAss.