ワイの耳ゴミやった

https://apps.npr.org/dailygraphics/graphics/streaming-quiz-20150519/child.html?initialWidth=747&childId=responsive-embed-streaming-quiz-20150519&parentUrl=http%3A%2F%2Fwww.npr.org%2Fsections%2Ftherecord%2F2015%2F06%2F02%2F411473508%2Fhow-well-can-you-hear-audio-quality%23quiz
全くわからん

よく分からんが2つ正解だったぞ