The correct answer to this open question is the following.
Yes, the growing number of interest groups support US Senator Byrd’s conclusion.
There is too much money involved in interest groups, and an increasing number of these groups have been appearing in the United States political scene. Senator Byrd was worried about this increased number and lack of control over these groups. Let's have in mind that these interest groups hire lobbyists to negotiate with legislators and offer support. But the US Congressmen had to be aware that it is the citizens that voted for them and put them in Congress as their representatives. So they serve the people, not the particular agendas of interest groups.
Musicals emerged primarily from the European Operetta which is a lighter version of the popular opera.
The operetta is a drama-musical production that is almost like the opera structurally. But the difference is that the plot is usually full of romance dramas alongside with music.
A lot of dance scenes and dialogues are also incorporated in them. One big difference was that the operettas were usually shorter than the operas.
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Khanacademy.org overview hope this helps :)
The highest building in LA is the US bank tower