<span>Mobutu Sese Seko emerging dictator of the Congo renamed it Zaire in 1965 and retained power into the 1990's</span>
The answer would be conflict.
The term that best completes the statement above would be "aria." It is a part of the opera wherein it expresses the music of the ensemble in such a way that it dictates the tone of the opera. It is usually accompanied by an instrument and it is not necessarily song by the opera singer.
