A piano consists of a wooden structure irrwhich sound resonates, or is made louder. Steel strings of different thicknesses, cut to different lengths, are used to produce notes of higher and lower pitches. When a player presses a key on the keyboard, a hammer inside the piano strikes a string and then withdraws again immediately, allowing the string to vibrate and produce sound. The sound is amplified by a wooden soundboard, so the sound can be heard throughout an entire concert hall Which answer option best evaluates how well the following summary reflects the original passage? A piano produces and amplifies sound in a complex process involving many steps O A. The summary is weak because it identifies minor details rather than the main point of the passage O B. The summary is weak because it does not accurately convey the meaning of the passage Oc. C. The summary is strong because it draws a personal conclusion about the passage D. The summary is strong because it identifies the main idea of the passage without going into unnecessary detail.