Answer :
A sackbut is a type of trombone; a shawm is a reed instrument.
The answer is option A.
The time period sackbut refers back to the early styles of the trombone generally used throughout the Renaissance and Baroque eras. A sackbut has the feature telescopic slide of a trombone, used to differ the duration of the tube to trade pitch, but is distinct from later trombones with the aid of its smaller, more cylindrically-proportioned bore, and its much less-flared bell. Unlike the earlier slide trumpet from which it advanced, the sackbut possesses a U-fashioned slide with parallel sliding tubes, instead of just one.
Facts of the term trombone predate the term sackbut by way of two decades, and evidence for the German time period Posaune is even older. Sackbut, at the beginning the French time period, became used in England until the tool fell into disuse within the eighteenth century; whilst it lower back, the Italian term trombone have become dominant. In contemporary English, an older trombone or a replica is referred to as a sackbut.
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