As he flipped through a yearbook he had fond memories of playing cornet in his what?\nOptions:\n- high school band\n- marching band\n- case\n- likes to day dream\n- museum
Step-by-step reasoning process below:

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Cornet is a musical instrument generally played in a band. Yearbook is a book in which people keep memories of their school days. The answer: high school band.
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