Parliament increased taxes on the colonists following the French and Indian War.
The Stamp Act was aimed mainly at southern states.
When Dwight Eisenhower sent federal troops into Central High School in Little Rock, Arkansas in 1957, it demonstrated that the President could assume powers to make unilateral decisions in order to ensure that the states did not descend into chaos or any disorder
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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Im pretty sure is d, both a and b