30.當助聽器佩戴者對效益不滿意時，下列那一問卷提供的系統化問題，最適合分析不滿意的原因？(A)助聽器每日生活使用滿意度調查表(Satisfaction with Amplification in Daily Life, SADL)(B)助聽器佩戴者的問卷(Hearing Aid Users' Questionnaire, HAUQ)(C)顧客導向進步量尺(Client Oriented Scale of Improvement, COSI)(D)簡易版助聽器效益評估表(Abbreviated Profile of Hearing Aid Benefit, APHAB)