Rondo forms in the classical period are most often found in option (d) i.e, final movements.
A rondo is an instrumental form in music that consists of the initial articulation and subsequent restatement of a particular subject or piece, separated by opposing material.
A sonata, concerto, symphony, or another multi-movement piece typically ends with a rondo as the final movement. Although the structure of a rondo is quite simple, the variations that composers choose to employ that form in are frequently complex. A melody is repeated in each rondo, with contrasting musical passages in between.
The two most common forms of a rondo are the 5-part version and the 7-part form. The 5-part form generally uses the pattern ABACA, but the 7-part form typically uses the pattern ABACABA.
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If you are referring to during the time of slavery, up north there was no slavery and they were free. If you are referring to during the civil Rights movement, African Americans faced less discrimination up north and no Jim Crow laws.
The term that best completes the blank is TOP CAT. "Top Cat, the indisputable leader of the gang." This is actually from a song lyrics entitled "Top Cat" which is by <span><span><span>Joseph Barbera & </span><span>William Hanna. This is a theme song of the cartoon "Top Cat". Hope this answers your question. </span></span></span>